18 in. Width x 8 in. Height

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18"w X 8"h Steel Return Air Grilles - Sidewall and ceiling - HVAC DUCT COVER - White [Outer Dimensions: 19.75"w X 9.75"h]
18"w X 8"h Steel Return Air Grilles - Sidewall and ceiling - HVAC DUCT COVER - White [Outer Dimensions: 19.75"w X 9.75"h]
$23.95
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(3)
 
18" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or ceiling - Grille Register - High Airflow - White
18" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or ceiling - Grille Register - High Airflow - White
$45.99
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  • In Stock
(1)
 
18" X 8" 2-Way Vertical AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face - White [Outer Dimensions: 19.75"w X 9.75"h]
18" X 8" 2-Way Vertical AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face - White [Outer Dimensions: 19.75"w X 9.75"h]
$25.99
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(3)
 
18" x 8" Steel Return Air Filter Grill for 1" Filter - Removable Face/Door - HVAC VENT DUCT COVER - Flat Stamped Face [White] [Outer Dimensions: 19.75"w X 9.75"h]
18" x 8" Steel Return Air Filter Grill for 1" Filter - Removable Face/Door - HVAC VENT DUCT COVER - Flat Stamped Face [White] [Outer Dimensions: 19.75"w X 9.75"h]
$26.95
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18" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 20.5"w X 10.5"h]
18" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 20.5"w X 10.5"h]
$38.99
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10"w X 8"h ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or ceiling - Grille Register - High Airflow - Black
10"w X 8"h ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or ceiling - Grille Register - High Airflow - Black
$44.99
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  • In Stock
 
18" X 8" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face - White [Outer Dimensions: 19.75"w X 9.75"h]
18" X 8" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face - White [Outer Dimensions: 19.75"w X 9.75"h]
$25.99
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  • In Stock
(3)
 
18"w X 8"h Steel Return Air Grilles - Sidewall and ceiling - HVAC DUCT COVER - Black [Outer Dimensions: 19.75"w X 9.75"h]
18"w X 8"h Steel Return Air Grilles - Sidewall and ceiling - HVAC DUCT COVER - Black [Outer Dimensions: 19.75"w X 9.75"h]
$13.95
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  • Currently Out Of Stock
 
18"w X 8"h Steel Return Air Grilles - Sidewall and ceiling - HVAC DUCT COVER - Brown [Outer Dimensions: 19.75"w X 9.75"h]
18"w X 8"h Steel Return Air Grilles - Sidewall and ceiling - HVAC DUCT COVER - Brown [Outer Dimensions: 19.75"w X 9.75"h]
$13.95
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  • Currently Out Of Stock