{"title":"18\" Round","description":"","products":[{"product_id":"18in-inch-aluminum-hose-flexible-insulated-r-42-air-duct-pipe-for-rigid-hvac-flex-ductwork-insulation-25-feet-long","title":"18\" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length","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 class=\"active\" href=\"#\" 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\u003eHigh Quality\u003c\/b\u003e - Aluminum housing on the outside and on the inside for the best insulation value\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eInsulation\u003c\/b\u003e – A thick blanket of fiberglass insulation provides you with an R-Value of 4.2\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEnergy Efficient\u003c\/b\u003e – Air-tight inner core decreases the pressure loss and provides a more hygienic environment - high energy efficient \/ No fiberglass erosion into air stream\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – Designed to withstand bends and sharp turns without kinking. Tough reinforced metallized polyester jacket - tear and puncture resistant\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n    \u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 aluminum flex duct is intended to be used in heating, cooling, ventilation, and waste gases transmission lines. Suitable for medium-pressure applications. It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire. \n      \u003c\/p\u003e\n\u003cp\u003eGreat emphasis has been invested in the design of this product to prevent it from kinking in sharp bends \u0026amp; turns and to hold steady and at full diameter in all applications. \u003c\/p\u003e\n      \u003cp\u003eAll steel wire is applied between PET surfaces to prevent corrosion (oxidization). Produced in accordance with ISO 9001-2008 Quality Management System. Complies with industry standards of USA: ASTM D-882. European: EN 10270-1-SM. \u0026amp; EN 13180 standards.\u003c\/p\u003e\n\n\u003cp\u003eBy means of the smooth surface, which the interior PET provides, this flex duct decreases the pressure loss and provides a more hygienic environment.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 been providing superior quality service for many years. We pride ourselves on offering top-of-the-line products that meet the highest standards. With our extensive selection of Grilles, Registers, and Diffusers, we have assisted countless contractors, DIY projects, and home improvement remodeling specialists in completing their masterpieces. If you are looking to enhance your project with a top-of-the-line unit, look no further than HVAC Premium.\u003c\/p\u003e\n      \u003cp\u003eWe carry sizes the big box stores don't, ensuring that you find the perfect fit for your ventilation needs. We are proud to have served over 5,000,000 satisfied customers!\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  }\n  .description-text {\n    font-family: Roboto, Arial, sans-serif;\n    line-height: 1.6;\n    color: #333; \/* Darker color for better readability *\/\n  }\n  ul {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\n  }\n  li {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\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    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      dt.querySelector('.plus').textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      dt.querySelector('.plus').textContent = '+';\n    }\n  }\n\u003c\/script\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":15783443857474,"sku":"18SLVRFLX","price":174.68,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/products\/18-inch-aluminum-hose-flexible-insulated-r-42-air-duct-pipe-for-hvac-flex-ductwork-insulation-25-feet-longflexible-duct-aluminum-jacket-r4-2-insulation-708122.jpg?v=1743794187"},{"product_id":"18in-inch-aluminum-hose-flexible-insulated-r-80-air-duct-pipe-for-rigid-hvac-flex-ductwork-insulation-25-feet-long","title":"18\" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length","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 class=\"active\" href=\"#\" 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\u003eHigh Quality\u003c\/b\u003e - Aluminum housing on the outside and on the inside for the best insulation value\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eInsulation\u003c\/b\u003e – A thick blanket of fiberglass insulation provides you with an R-Value of 8.0\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEnergy Efficient\u003c\/b\u003e – Air-tight inner core decreases the pressure loss and provides a more hygienic environment - high energy efficient \/ No fiberglass erosion into air stream\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – Designed to withstand bends and sharp turns without kinking. Tough reinforced metallized polyester jacket - tear and puncture resistant\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n    \u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 aluminum flex duct is intended to be used in heating, cooling, ventilation, and waste gases transmission lines. Suitable for medium-pressure applications. It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire. \n      \u003c\/p\u003e\n\u003cp\u003eGreat emphasis has been invested in the design of this product to prevent it from kinking in sharp bends \u0026amp; turns and to hold steady and at full diameter in all applications. \u003c\/p\u003e\n      \u003cp\u003eAll steel wire is applied between PET surfaces to prevent corrosion (oxidization). Produced in accordance with ISO 9001-2008 Quality Management System. Complies with industry standards of USA: ASTM D-882. European: EN 10270-1-SM. \u0026amp; EN 13180 standards.\u003c\/p\u003e\n\n\u003cp\u003eBy means of the smooth surface, which the interior PET provides, this flex duct decreases the pressure loss and provides a more hygienic environment.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 been providing superior quality service for many years. We pride ourselves on offering top-of-the-line products that meet the highest standards. With our extensive selection of Grilles, Registers, and Diffusers, we have assisted countless contractors, DIY projects, and home improvement remodeling specialists in completing their masterpieces. If you are looking to enhance your project with a top-of-the-line unit, look no further than HVAC Premium.\u003c\/p\u003e\n      \u003cp\u003eWe carry sizes the big box stores don't, ensuring that you find the perfect fit for your ventilation needs. We are proud to have served over 5,000,000 satisfied customers!\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  }\n  .description-text {\n    font-family: Roboto, Arial, sans-serif;\n    line-height: 1.6;\n    color: #333; \/* Darker color for better readability *\/\n  }\n  ul {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\n  }\n  li {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\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    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      dt.querySelector('.plus').textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      dt.querySelector('.plus').textContent = '+';\n    }\n  }\n\u003c\/script\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":15783447003202,"sku":"188SFLX-R8.0","price":231.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/products\/18-inch-aluminum-hose-flexible-insulated-r-80-air-duct-pipe-for-hvac-flex-ductwork-insulation-25-feet-longflexible-duct-aluminum-jacket-r8-0-insulation-900416.jpg?v=1743794181"},{"product_id":"18-x-10-round-duct-sheet-metal-pipe-30-gauge-galvanized-crimped-end-connection-2-pcs-5","title":"5 Pack 18\" Round x 24\" Long (Total 10 Feet) - 26-Gauge Galvanized Round Duct Sheet Metal Pipe - Snap Lock with Crimped End Connection [5 Pieces, 2' Each]","description":"\u003cdiv style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\" href=\"#\" onclick=\"toggleAccordion(event)\"\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 \u0026amp; Compatibility\u003c\/b\u003e – The size of sheet metal pipe is 18\" round x 10' long, compatible with duct 18\" | 5-Pack of 2' pipe  – 10 foot length when connected – 26 gauge thick \u0026amp; made of thick \u0026amp; durable galvanized sheet metal\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Quality\u003c\/b\u003e – Made in the USA. our solid dryer vent pipe is made of high-quality galvanized sheet metal with crimped ends (snap-lock design) for easy fitting and secure connection to consecutive duct joints\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplications\u003c\/b\u003e – The snap on system makes for easy installation and will prevent the seam from coming apart\nwhile also preventing air leakage making your HVAC system more energy efficient and in turn, lowering the cost of your utility bills.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – Galvanized metal, designed to prevent corrosion, oxidation, and rust caused by water and moisture, offers long-lasting durability, reducing maintenance costs. This energy-efficient material maximizes airflow and minimizes fire hazards.\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\" href=\"#\" onclick=\"toggleAccordion(event)\"\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;\"\u003e\n\u003cp\u003eIf you are looking for a good quality Galvanized Steel Duct to enhance your project look no further than HVAC Premium. We have helped a lot of customers and we are proud to be having happy customers. We always strive to choose high-quality materials and provide the most intimate service, and we commit that our product will provide you with a satisfying purchasing experience. We provide the best quality products!\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\" href=\"#\" onclick=\"toggleAccordion(event)\"\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;\"\u003e\n\u003cp\u003eHVAC Premium has been providing superior quality service for many years. We pride ourselves on offering top-of-the-line products that meet the highest standards. With our extensive selection of Grilles, Registers, and Diffusers, we have assisted countless contractors, DIY projects, and home improvement remodeling specialists in completing their masterpieces. If you are looking to enhance your project with a top-of-the-line unit, look no further than HVAC Premium.\u003c\/p\u003e\n\u003cp\u003eWe carry sizes the big box stores don't, ensuring that you find the perfect fit for your ventilation needs. We are proud to have served over 5,000,000 satisfied customers!\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\u003c!--\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #000;\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\n  .accordion-title {\n    font-size: 18px;\n  }\n--\u003e\u003c\/style\u003e\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n\n    if (dd.style.display === 'none') {\n      dd.style.display = 'block';\n      dt.querySelector('.plus').textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      dt.querySelector('.plus').textContent = '+';\n    }\n  }\n\u003c\/script\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":42095004844269,"sku":"RP-18-5x2","price":361.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/products\/5-pack-18-round-x-24-long-total-10-feet-26-gauge-galvanized-round-duct-sheet-metal-pipe-snap-lock-with-crimped-end-connection-5-pieces-2-eachsheet-metal-round-d-785896.jpg?v=1743791355"},{"product_id":"hvac-premium-round-metal-pipe-reducer-increaser-18-to-14-hvac-duct-reducer-or-increaser-26g-gauge-galvanized-sheet-metal-ducting-connector-is-compatible-with-duct-14","title":"HVAC Premium Round Metal Pipe Reducer \u0026 Increaser | 18\" to 14\" HVAC Duct Reducer or Increaser 26g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 14\"","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 class=\"active\" href=\"#\" 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 \u0026amp; Compatibilty\u003c\/b\u003e - The 18\" to 14\" round metal pipe reducer \u0026amp; increaser 30 gauge is compatible with duct 18\" to 14\". Made in the USA\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePremium Quality\u003c\/b\u003e – Our galvanized ducting connector is made of high-quality galvanized sheet metal.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eApplications\u003c\/b\u003e – Reducers transition ducts from larger to smaller sizes and ensure smooth, continuous airflow.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n    \u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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\u003eThe HVAC Premium Round Metal Pipe Reducer \u0026amp; Increaser is crafted from high-quality galvanized sheet metal, designed to transition ducts from larger to smaller sizes. This ensures smooth, continuous airflow throughout your HVAC system. Built with durable 30-gauge metal, it’s ideal for both residential and commercial applications, offering a reliable and easy-to-install solution for maintaining airflow efficiency.\u003c\/p\u003e\n    \u003c\/dd\u003e\n    \u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 been providing superior quality service for many years. We pride ourselves on offering top-of-the-line products that meet the highest standards. With our extensive selection of Grilles, Registers, and Diffusers, we have assisted countless contractors, DIY projects, and home improvement remodeling specialists in completing their masterpieces. If you are looking to enhance your project with a top-of-the-line unit, look no further than HVAC Premium.\u003c\/p\u003e\n      \u003cp\u003eWe carry sizes the big box stores don't, ensuring that you find the perfect fit for your ventilation needs. We are proud to have served over 5,000,000 satisfied customers!\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  }\n  .description-text {\n    font-family: Roboto, Arial, sans-serif;\n    line-height: 1.6;\n    color: #333; \/* Darker color for better readability *\/\n  }\n  ul {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\n  }\n  li {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\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    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      dt.querySelector('.plus').textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      dt.querySelector('.plus').textContent = '+';\n    }\n  }\n\u003c\/script\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":43332908417261,"sku":"1814Reducer","price":105.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/products\/hvac-premium-round-metal-pipe-reducer-increaser-18-to-14-hvac-duct-reducer-or-increaser-26g-gauge-galvanized-sheet-metal-ducting-connector-is-compatible-with-du-864846.jpg?v=1743791145"},{"product_id":"hvac-premium-round-metal-pipe-reducer-increaser-18-to-16-hvac-duct-reducer-or-increaser-26g-gauge-galvanized-sheet-metal-ducting-connector-is-compatible-with-duct-16","title":"Round Metal Pipe Reducer \u0026 Increaser | 18\" to 16\" HVAC Duct Reducer or Increaser 26g Gauge | Galvanized Sheet Metal Ducting Connector is Compatible with Duct 16\"","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 class=\"active\" href=\"#\" 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 \u0026amp; Compatibilty\u003c\/b\u003e - The 18\" to 16\" round metal pipe reducer \u0026amp; increaser 30 gauge is compatible with duct 18\" to 16\". Made in the USA\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003ePremium Quality\u003c\/b\u003e – Our galvanized ducting connector is made of high-quality galvanized sheet metal.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eApplications\u003c\/b\u003e – Reducers transition ducts from larger to smaller sizes and ensure smooth, continuous airflow.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n    \u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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\u003eThe HVAC Premium Round Metal Pipe Reducer \u0026amp; Increaser is crafted from high-quality galvanized sheet metal, designed to transition ducts from larger to smaller sizes. This ensures smooth, continuous airflow throughout your HVAC system. Built with durable 30-gauge metal, it’s ideal for both residential and commercial applications, offering a reliable and easy-to-install solution for maintaining airflow efficiency.\u003c\/p\u003e\n    \u003c\/dd\u003e\n    \u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 been providing superior quality service for many years. We pride ourselves on offering top-of-the-line products that meet the highest standards. With our extensive selection of Grilles, Registers, and Diffusers, we have assisted countless contractors, DIY projects, and home improvement remodeling specialists in completing their masterpieces. If you are looking to enhance your project with a top-of-the-line unit, look no further than HVAC Premium.\u003c\/p\u003e\n      \u003cp\u003eWe carry sizes the big box stores don't, ensuring that you find the perfect fit for your ventilation needs. We are proud to have served over 5,000,000 satisfied customers!\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  }\n  .description-text {\n    font-family: Roboto, Arial, sans-serif;\n    line-height: 1.6;\n    color: #333; \/* Darker color for better readability *\/\n  }\n  ul {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\n  }\n  li {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\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    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      dt.querySelector('.plus').textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      dt.querySelector('.plus').textContent = '+';\n    }\n  }\n\u003c\/script\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":43332908450029,"sku":"1816Reducer","price":130.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/products\/round-metal-pipe-reducer-increaser-18-to-16-hvac-duct-reducer-or-increaser-26g-gauge-galvanized-sheet-metal-ducting-connector-is-compatible-with-duct-16pipe-red-164713.jpg?v=1743791144"},{"product_id":"18-inch-flexible-aluminum-ducting-hose-insulated-r-6-0-air-duct-pipe-25-feet-long","title":"18\" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length","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 class=\"active\" href=\"#\" 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\u003eHigh Quality\u003c\/b\u003e - Aluminum housing on the outside and on the inside for the best insulation value\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eInsulation\u003c\/b\u003e – A thick blanket of fiberglass insulation provides you with an R-Value of 6.0\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eEnergy Efficient\u003c\/b\u003e – Air-tight inner core decreases the pressure loss and provides a more hygienic environment - high energy efficient \/ No fiberglass erosion into air stream\u003c\/li\u003e\n        \u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – Designed to withstand bends and sharp turns without kinking. Tough reinforced metallized polyester jacket - tear and puncture resistant\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/dd\u003e\n    \u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 aluminum flex duct is intended to be used in heating, cooling, ventilation, and waste gases transmission lines. Suitable for medium-pressure applications. It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire. \n      \u003c\/p\u003e\n\u003cp\u003eGreat emphasis has been invested in the design of this product to prevent it from kinking in sharp bends \u0026amp; turns and to hold steady and at full diameter in all applications. \u003c\/p\u003e\n      \u003cp\u003eAll steel wire is applied between PET surfaces to prevent corrosion (oxidization). Produced in accordance with ISO 9001-2008 Quality Management System. Complies with industry standards of USA: ASTM D-882. European: EN 10270-1-SM. \u0026amp; EN 13180 standards.\u003c\/p\u003e\n\n\u003cp\u003eBy means of the smooth surface, which the interior PET provides, this flex duct decreases the pressure loss and provides a more hygienic environment.\u003c\/p\u003e\n    \u003c\/dd\u003e\n\u003cdt\u003e\n      \u003ca class=\"active\" href=\"#\" 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 been providing superior quality service for many years. We pride ourselves on offering top-of-the-line products that meet the highest standards. With our extensive selection of Grilles, Registers, and Diffusers, we have assisted countless contractors, DIY projects, and home improvement remodeling specialists in completing their masterpieces. If you are looking to enhance your project with a top-of-the-line unit, look no further than HVAC Premium.\u003c\/p\u003e\n      \u003cp\u003eWe carry sizes the big box stores don't, ensuring that you find the perfect fit for your ventilation needs. We are proud to have served over 5,000,000 satisfied customers!\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  }\n  .description-text {\n    font-family: Roboto, Arial, sans-serif;\n    line-height: 1.6;\n    color: #333; \/* Darker color for better readability *\/\n  }\n  ul {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\n  }\n  li {\n    margin-bottom: 15px; \/* Adding space between bullet points *\/\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    if (dd.style.display === 'none' || dd.style.display === '') {\n      dd.style.display = 'block';\n      dt.querySelector('.plus').textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      dt.querySelector('.plus').textContent = '+';\n    }\n  }\n\u003c\/script\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":43433244950765,"sku":"18SFLX-R6","price":209.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/products\/18-inch-flexible-aluminum-ducting-hose-insulated-r-60-air-duct-pipe-25-feet-longflexible-aluminum-ducting-hose-insulated-r-60-air-845909.jpg?v=1743791082"},{"product_id":"18-diameter-5deg-90deg-degree-adjustable-elbow-4-pack","title":"18\" Diameter - 90° Degree Adjustable Elbow - 1 PACK","description":"\u003cdiv style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\n\u003cdl class=\"accordion\"\u003e\n\u003cdt\u003e\u003ca class=\"active\" href=\"#\" onclick=\"toggleAccordion(event)\"\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 – 18\" round duct sheet metal elbow - 30 gauge galvanized - crimped end connection - adjustable from 5° - 90°\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Quality\u003c\/b\u003e – Made of galvanized metal to prevent corrosion, oxidation \u0026amp; rust from water \u0026amp; moisture that lasts longer requiring less maintenance – Save money with this energy efficient material, maximizes airrflow and reduces fire hazards.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplications\u003c\/b\u003e – 30 Gauge thick \u0026amp; made of thick \u0026amp; durable galvanized sheet metal - used for HVAC system duct work in any building or home\nincluding: round exhaust air duct systems for dryers, exhaust fans and range hoods that need turns from 5° - 90° degrees and are simple to adjust.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign\u003c\/b\u003e – Easy Snap-Lock Design: Featuring crimped ends, our duct pipes offer a secure and hassle-free connection to consecutive duct joints. Galvanized metal, designed to prevent corrosion, oxidation, and rust caused by water and moisture, offers long-lasting durability, reducing maintenance costs. This energy-efficient material maximizes airflow and minimizes fire hazards.\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\" href=\"#\" onclick=\"toggleAccordion(event)\"\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;\"\u003e\n\u003cp\u003eDiscover top-quality HVAC components for your home or building, proudly Made in the USA! Our Galvanized Sheet Metal Duct Pipes are built to last, crafted from thick and durable galvanized sheet metal. \u003c\/p\u003e\n\u003cp\u003eThese components are designed to enhance your HVAC system's performance while minimizing maintenance needs and reducing utility costs. \u003c\/p\u003e\n\u003cp\u003eKey Features: \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-Quality Galvanized Sheet Metal: Our duct pipes are made from premium galvanized steel, ensuring longevity and resistance to corrosion, oxidation, and rust caused by water and moisture. \u003c\/li\u003e\n\u003cli\u003eEasy Snap-Lock Design: Featuring crimped ends, our duct pipes offer a secure and hassle-free connection to consecutive duct joints. Say goodbye to air leakage and enjoy an energy-efficient HVAC system. \u003c\/li\u003e\n\u003cli\u003eAdjustable Elbows: Need flexibility in your ductwork? Our elbows are adjustable from 5° to 90°, allowing you to create the perfect angle for your HVAC system. Whether it's a 45° or 95° degree angle, our components fit seamlessly.\u003c\/li\u003e\n\u003cli\u003eVersatile Usage: These duct pipes are suitable for various applications, including round exhaust air duct systems for dryers, exhaust fans, and range hoods. Achieve any 3D configuration with ease. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your HVAC system with our Galvanized Sheet Metal Duct Pipes today! Enjoy efficient airflow, reduced fire hazards, and long-lasting performance. Shop now for reliable HVAC solutions.\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003cdt\u003e\u003ca class=\"active\" href=\"#\" onclick=\"toggleAccordion(event)\"\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;\"\u003e\n\u003cp\u003eHVAC Premium has been providing superior quality service for many years. We pride ourselves on offering top-of-the-line products that meet the highest standards. With our extensive selection of Grilles, Registers, and Diffusers, we have assisted countless contractors, DIY projects, and home improvement remodeling specialists in completing their masterpieces. If you are looking to enhance your project with a top-of-the-line unit, look no further than HVAC Premium.\u003c\/p\u003e\n\u003cp\u003eWe carry sizes the big box stores don't, ensuring that you find the perfect fit for your ventilation needs. We are proud to have served over 5,000,000 satisfied customers!\u003c\/p\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\u003c!--\n  .plus {\n    display: inline-block;\n    width: 20px;\n    height: 20px;\n    background-color: #000;\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\n  .accordion-title {\n    font-size: 18px;\n  }\n--\u003e\u003c\/style\u003e\n\u003cscript\u003e\n  function toggleAccordion(event) {\n    event.preventDefault();\n    const dt = event.target.closest('dt');\n    const dd = dt.nextElementSibling;\n\n    if (dd.style.display === 'none') {\n      dd.style.display = 'block';\n      dt.querySelector('.plus').textContent = '-';\n    } else {\n      dd.style.display = 'none';\n      dt.querySelector('.plus').textContent = '+';\n    }\n  }\n\u003c\/script\u003e","brand":"HVAC Premium","offers":[{"title":"Default Title","offer_id":43455058378989,"sku":"RP-EL1890x1","price":95.33,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/8213\/6898\/files\/18-diameter-900-degree-adjustable-elbow-1-pack-131234.jpg?v=1743791079"}],"url":"https:\/\/hvacpremium.com\/collections\/18-round\/18in-diameter.oembed","provider":"HVAC Premium","version":"1.0","type":"link"}