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12 in. Width x 20 in. Height

12" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 22 5/8"] $44.44 USD Out of Stock
12" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 22 5/8"] $36.30 USD Out of Stock
12" x 20" or 20" x 12" Cube Core Eggcrate Return Air Grille $42.25 USD Out of Stock
12" x 20" Pleated MERV 8 Allergen Filter for HVAC Return Filter Grille $13.69 USD Out of Stock
12" X 18" AIR VENT RETURN GRILLES - SIDEWALL AND CEILING - HVAC VENT DUCT COVER DIFFUSER - STEEL $32.04 USD Out of Stock
12" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter $49.40 USD Out of Stock
12"w X 20"h Aluminum Outdoor Weather Proof Louvers - Rain & Waterproof Air Vent With Screen Mesh $62.07 USD Out of Stock
20" X 24" Aluminum Return Grille - Easy Airflow - Linear Bar Grilles $64.57 USD Out of Stock