12" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 22 5/8"] w10h10 this model ensures top-notch air

this model ensures top-notch air quality

+ Product Details Size – 6"w X 14"h is the size for the duct opening measurement only

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this grill will provide the design aesthetic you're looking for

12" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 22 5/8"] w10h10 this model ensures top-notch air+ Product Details Size 12"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 22 5 8" height Actual Filter Size 11 3 4"w x 19 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter