18 in. Width x 10 in. Height

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18" X 10" Air Vent Return Grilles - Sidewall and Ceiling - Steel
18" X 10" Air Vent Return Grilles - Sidewall and Ceiling - Steel
$24.99
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(4)
 
18" X 10" Steel Return Air Filter Grille for 1" Filter Fixed Hinged
18" X 10" Steel Return Air Filter Grille for 1" Filter Fixed Hinged
$39.99
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18"w X 10"h Aluminum Exterior Crawlspace Vent - Rain & Waterproof Air Vent With Screen Mesh
18"w X 10"h Aluminum Exterior Crawlspace Vent - Rain & Waterproof Air Vent With Screen Mesh
$51.95
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18" x 8"" Steel Return Air Filter Grill for 1" Filter Removable Face/Door
18" x 8"" Steel Return Air Filter Grill for 1" Filter Removable Face/Door
$29.95
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18" X 10" 2-Way Vertical AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face
18" X 10" 2-Way Vertical AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face
$29.95
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(2)
 
18"w X 10"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return
18"w X 10"h Aluminum Privacy Door HVAC Air Grille - "V" Shaped Louvers Ensure 100% View Block - Supply or Return
$73.95
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18" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter
18" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter
$40.95
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18" X 10" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face
18" X 10" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face
$26.99
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(2)
 
18" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling
18" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling
$45.99
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