12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 14 5/8" X 26 5/8"] w24h24 margin-right: 12px

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+ Product Details Size – 26"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 10"w X 22"h is the size for the duct opening measurement only

Actual Filter Size – 11 3/4"w x 23 3/4" x 1"

Actual Filter Size – 23 3/4"w x 11 3/4" x 1"

12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 14 5/8" X 26 5/8"] w24h24 margin-right: 12px+ Product Details Size 12"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 26 5 8" height Actual Filter Size 11 3 4"w x 23 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