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18 in. Width x 12 in. Height

18" X 12" Steel Return Air Filter Grille for 1" Filter Fixed Hinged $58.71 USD Out of Stock
18" X 12" Steel Return Air Filter Grille for 1" Filter Removable Face/Door $59.57 USD Out of Stock
18" x 12" Pleated MERV 8 Allergen Filter for HVAC Return Filter Grille $13.55 USD Out of Stock
18" x 12" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 17.75 X 11.75] 3-Pack $25.54 USD Out of Stock
18" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter $43.95 USD Out of Stock
18" X 12" Aluminum Return Grille $39.38 USD Out of Stock
18" X 12" 3-Way AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face $26.50 USD Out of Stock
18" X 12" 2-Way Vertical AIR SUPPLY GRILLE - DUCT COVER & DIFFUSER - Flat Stamped Face $26.99 USD Out of Stock

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