{"title":"Supply \/ Extruded Aluminum Ceiling w\/ Aluminum Dampers","description":"","products":[{"product_id":"8-x-8-duct-opening-ceiling-supply-diffuser-vent-cover-1-way-airflow-with-full-aluminum-frame-back-blades-lever-damper-outer-size-11-x-11","title":"8\" x 8\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 11\" x 11\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 1-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48144895049965,"sku":"SHEASC8W1-HP","price":60.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W1-HPMain.jpg?v=1758829091"},{"product_id":"6-x-6-duct-opening-ceiling-supply-diffuser-vent-cover-1-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-9-x-9","title":"6\" x 6\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 9\" x 9\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 1-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48144985063661,"sku":"SHEASC6W1-HP","price":109.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC6W1-HPMain.jpg?v=1758828954"},{"product_id":"10-x-10-duct-opening-ceiling-supply-diffuser-vent-cover-1-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-13-x-13","title":"10\" x 10\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 13\" x 13\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 1-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48144992076013,"sku":"SHEASC10W1-HP","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC10W1-HP_Main.jpg?v=1758827474"},{"product_id":"12-x-12-duct-opening-ceiling-supply-diffuser-vent-cover-1-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-15-x-15","title":"12\" x 12\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 15\" x 15\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 1-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48144993616109,"sku":"SHEASC12W1-HP","price":94.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC10W1-HP_Main.jpg?v=1758827474"},{"product_id":"14-x-14-duct-opening-ceiling-supply-diffuser-vent-cover-1-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-17-x-17","title":"14\" x 14\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 17\" x 17\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 1-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48144998793453,"sku":"SHEASC14W1-HP","price":116.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC14W1-HP_Main.jpg?v=1758228997"},{"product_id":"6-x-6-duct-opening-ceiling-supply-diffuser-vent-cover-2-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-9-x-9","title":"6\" x 6\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 9\" x 9\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 2-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145400168685,"sku":"SHEASC6W2O-HP","price":46.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC6W2O-HP_Main.jpg?v=1758228997"},{"product_id":"8-x-8-duct-opening-ceiling-supply-diffuser-vent-cover-2-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-11-x-11","title":"8\" x 8\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 11\" x 11\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 2-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145408458989,"sku":"SHEASC8W2O-HP","price":60.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W2O-HP_Main.jpg?v=1758831017"},{"product_id":"10-x-10-duct-opening-ceiling-supply-diffuser-vent-cover-2-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-13-x-13","title":"10\" x 10\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 13\" x 13\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 2-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145418354925,"sku":"SHEASC10W2O-HP","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W2O-HP_Main.jpg?v=1758831017"},{"product_id":"12-x-12-duct-opening-ceiling-supply-diffuser-vent-cover-2-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-15-x-15","title":"12\" x 12\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 15\" x 15\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 2-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145429823725,"sku":"SHEASC12W2O-HP","price":94.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC10W2O-HPMain.jpg?v=1758831947"},{"product_id":"14-x-14-duct-opening-ceiling-supply-diffuser-vent-cover-2-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-17-x-17","title":"14\" x 14\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 17\" x 17\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 2-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145444667629,"sku":"SHEASC14W2O-HP","price":116.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC14W2O-HP_Main.jpg?v=1758228998"},{"product_id":"6-x-6-duct-opening-ceiling-supply-diffuser-vent-cover-3-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-9-x-9","title":"6\" x 6\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 9\" x 9\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 3-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145468063981,"sku":"SHEASC6W3-HP","price":46.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC6W3-HP_Main.jpg?v=1758825888"},{"product_id":"8-x-8-duct-opening-ceiling-supply-diffuser-vent-cover-3-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-11-x-11","title":"8\" x 8\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 11\" x 11\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 3-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145472979181,"sku":"SHEASC8W3-HP","price":60.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W3-HP_Main.jpg?v=1758228998"},{"product_id":"10-x-10-duct-opening-ceiling-supply-diffuser-vent-cover-3-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-13-x-13","title":"10\" x 10\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 13\" x 13\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 3-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145483399405,"sku":"SHEASC10W3-HP","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W3-HPMain.jpg?v=1758825431"},{"product_id":"12-x-12-duct-opening-ceiling-supply-diffuser-vent-cover-3-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-15-x-15","title":"12\" x 12\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 15\" x 15\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 3-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145486938349,"sku":"SHEASC12W3-HP","price":94.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12W3-HP_Main.jpg?v=1758228998"},{"product_id":"14-x-14-duct-opening-ceiling-supply-diffuser-vent-cover-3-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-17-x-17","title":"14\" x 14\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 17\" x 17\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 3-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145503092973,"sku":"SHEASC14W3-HP","price":116.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC14W3-HP_Main.jpg?v=1758228998"},{"product_id":"6-x-6-duct-opening-ceiling-supply-diffuser-vent-cover-4-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-9-x-9","title":"6\" x 6\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 9\" x 9\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 4-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145516036333,"sku":"SHEASC6W4-HP","price":46.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC6W4-HP_Main.jpg?v=1758228997"},{"product_id":"8-x-8-duct-opening-ceiling-supply-diffuser-vent-cover-4-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-11-x-11","title":"8\" x 8\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 11\" x 11\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 4-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145523015917,"sku":"SHEASC8W4-HP","price":60.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W4-HP_Main.jpg?v=1758228998"},{"product_id":"10-x-10-duct-opening-ceiling-supply-diffuser-vent-cover-4-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-13-x-13","title":"10\" x 10\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 13\" x 13\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 4-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145527046381,"sku":"SHEASC10W4-HP","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W4-HP_Main.jpg?v=1758228998"},{"product_id":"12-x-12-duct-opening-ceiling-supply-diffuser-vent-cover-4-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-15-x-15","title":"12\" x 12\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 15\" x 15\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 4-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145531306221,"sku":"SHEASC12W4-HP","price":94.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12W4-HP_Main.jpg?v=1758228998"},{"product_id":"14-x-14-duct-opening-ceiling-supply-diffuser-vent-cover-4-way-airflow-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-17-x-17","title":"14\" x 14\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 17\" x 17\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 4-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48145534615789,"sku":"SHEASC14W4-HP","price":116.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC14W4-HP_Main.jpg?v=1758228998"},{"product_id":"6-x-6-duct-opening-ceiling-supply-diffuser-vent-cover-corner-direction-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-9-x-9","title":"6\" x 6\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 9\" x 9\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated corner airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48149524644077,"sku":"SHEASC6W2C-HP","price":46.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC6W2C-HP_Main.jpg?v=1758228998"},{"product_id":"8-x-8-duct-opening-ceiling-supply-diffuser-vent-cover-corner-direction-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-9-x-9","title":"8\" x 8\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 11\" x 11\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated corner airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48149549154541,"sku":"SHEASC8W2C-HP","price":60.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W2C-HPMain.jpg?v=1758228897"},{"product_id":"10-x-10-duct-opening-ceiling-supply-diffuser-vent-cover-corner-direction-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-13-x-13","title":"10\" x 10\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 13\" x 13\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated corner airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48149618393325,"sku":"SHEASC10W2C-HP","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC8W2C-HPMain.jpg?v=1758228897"},{"product_id":"12-x-12-duct-opening-ceiling-supply-diffuser-vent-cover-corner-direction-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-15-x-15","title":"12\" x 12\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 15\" x 15\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated corner airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48149639725293,"sku":"SHEASC12W2C-HP","price":94.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12W2C-HP_Main.jpg?v=1758228997"},{"product_id":"14-x-14-duct-opening-ceiling-supply-diffuser-vent-cover-corner-direction-with-full-aluminum-frame-back-blades-opposing-blade-lever-damper-outer-size-17-x-17","title":"14\" x 14\" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades \u0026 Opposing Blade Lever Damper [Outer Size: 17\" x 17\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated corner airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n\u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n\u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n\u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active centered-title\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003eAlways measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003eThe first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\"\u003e \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e \u003c\/a\u003e\u003c\/dt\u003e\n\u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n\u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n\u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48149666693357,"sku":"SHEASC14W2C-HP","price":116.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC14W2C-HP_Main.jpg?v=1758228998"},{"product_id":"6-x-6-duct-opening-flat-plaque-aluminum-ceiling-supply-diffuser-duct-cover-with-lever-operated-damper-for-air-flow-control-outer-dimensions-9-x-9","title":"6\" x 6\" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 9\" x 9\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated 1-way airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48261216370925,"sku":"SHEASC6FP","price":42.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12FP_main.jpg?v=1757368786"},{"product_id":"8-x-8-duct-opening-flat-plaque-aluminum-ceiling-supply-diffuser-duct-cover-with-lever-operated-damper-for-air-flow-control-outer-dimensions-11-x-11","title":"8\" x 8\" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 11\" x 11\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48261603721453,"sku":"SHEASC8FP","price":56.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12FP_main.jpg?v=1757368786"},{"product_id":"10-x-10-duct-opening-flat-plaque-aluminum-ceiling-supply-diffuser-duct-cover-with-lever-operated-damper-for-air-flow-control-outer-dimensions-13-x-13","title":"10\" x 10\" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 13\" x 13\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48261612830957,"sku":"SHEASC10FP","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12FP_main.jpg?v=1757368786"},{"product_id":"12-x-12-duct-opening-flat-plaque-aluminum-ceiling-supply-diffuser-duct-cover-with-lever-operated-damper-for-air-flow-control-outer-dimensions-15-x-15","title":"12\" x 12\" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 15\" x 15\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48261621219565,"sku":"SHEASC12FP","price":87.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12FP_main.jpg?v=1757368786"},{"product_id":"14-x-14-duct-opening-flat-plaque-aluminum-ceiling-supply-diffuser-duct-cover-with-lever-operated-damper-for-air-flow-control-outer-dimensions-17-x-17","title":"14\" x 14\" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 17\" x 17\"]","description":"\u003cdiv style=\"border: 2px solid #5296DD; padding: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); border-radius: 5px;\"\u003e\n  \u003cdl class=\"accordion\"\u003e\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Details\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e – Refers to duct opening only. The face frame extends roughly 1.5\" on each side. Do not measure the overall grille for sizing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – All-aluminum frame and back blades. Rustproof and built to last in moisture-prone environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eQuiet Airflow\u003c\/b\u003e – Opposing blade damper design reduces vibration and noise for smoother air distribution.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eClean Finish\u003c\/b\u003e – White powder-coated surface resists chips, scratches, and discoloration over time.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEasy Installation\u003c\/b\u003e – Pre-drilled mounting holes and matching screws included for a fast and secure ceiling install.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePrecision Control\u003c\/b\u003e – Lever-operated airflow lets you easily adjust ventilation direction and flow rate.\u003c\/li\u003e      \n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eProduct Description\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eThis premium ceiling supply diffuser vent cover is built for durability, quiet airflow, and a clean finish. It’s made entirely from aluminum, so it won’t rust or degrade in humid conditions.\u003c\/p\u003e\n      \u003cp\u003eThe lever-operated damper uses an opposing blade design that closes in pairs for smooth, balanced airflow with reduced noise and vibration.\u003c\/p\u003e\n      \u003cp\u003eFinished in a sleek white powder coat, it blends seamlessly into the ceiling and resists chips and scratches over time. Installation is quick and easy with pre-drilled holes and matching screws included.\u003c\/p\u003e\n      \u003cp\u003ePerfect for both residential and commercial HVAC systems, this vent delivers long-lasting performance with a modern, low-profile look.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active centered-title\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eHow To Measure a Grille Before You Buy\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003e\u003cstrong\u003eDuct Opening Size:\u003c\/strong\u003e\u003cbr\u003e Always measure the actual opening in your ceiling or wall, not the grille itself. The outer frame overlaps the edge of the duct and is typically 1.5\" wider on each side.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWidth vs Height:\u003c\/strong\u003e\u003cbr\u003e The first number is width (left to right), and the second is height (top to bottom). For example, a 20 x 14 grille fits a duct opening that is 20” wide and 14” tall.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\n    \u003cdt\u003e\n      \u003ca href=\"javascript:void(0)\" class=\"active\" onclick=\"toggleAccordion(event)\"\u003e\n        \u003cspan class=\"plus\"\u003e+\u003c\/span\u003e \u003cspan class=\"accordion-title\"\u003eWhy HVAC Premium\u003c\/span\u003e\n      \u003c\/a\u003e\n    \u003c\/dt\u003e\n    \u003cdd style=\"display: none;\" class=\"description-text\"\u003e\n      \u003cp\u003eHVAC Premium has delivered high-quality air distribution products for years, trusted by contractors, remodelers, and homeowners alike. We pride ourselves on offering a wide selection of grilles, registers, and diffusers to match any project or spec.\u003c\/p\u003e\n      \u003cp\u003eWe stock hard-to-find sizes and specialize in durable, attractive finishes that stand up to wear. With over 5,000,000 units sold, our products continue to set the standard for professional-grade HVAC solutions.\u003c\/p\u003e\n    \u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #5296DD;\n    color: #fff;\n    font-size: 14px;\n    text-align: center;\n    line-height: 20px;\n    margin-right: 8px;\n    border-radius: 50%;\n  }\n  .accordion-title {\n    font-size: 18px;\n    cursor: pointer;\n  }\n  .description-text {\n    font-family: Arial, sans-serif;\n    line-height: 1.6;\n    color: #111;\n  }\n  .centered-title {\n    text-align: center;\n    display: block;\n    width: 100%;\n  }\n  ul {\n    margin-bottom: 15px;\n    padding-left: 20px;\n  }\n  li {\n    margin-bottom: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n    const plus = dt.querySelector('.plus');\n\n    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      if (plus) plus.textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      if (plus) plus.textContent = '+';\n    }\n  }\n\u003c\/script\u003e\n","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":48273144742125,"sku":"SHEASC14FP","price":107.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/SHEASC12FP_main.jpg?v=1757368786"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/collections\/supply-extruded-aluminum-ceiling-744002.png?v=1750700777","url":"https:\/\/hvacpremium.com\/collections\/supply-extruded-aluminum-ceiling-w-aluminum-dampers.oembed","provider":"HVAC Premium","version":"1.0","type":"link"}