10" X 26" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 28 5/8"] flat stamped steel + Product Details Size –

+ Product Details Size – 20"w X 34"h is the size for the duct opening measurement only

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+ Product Details Size – 22"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 8" x 20" or 20" x 8" is the size for the duct opening measurement only

10" X 26" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 28 5/8"] flat stamped steel + Product Details Size –+ Product Details Size 10"w X 26"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 28 5 8" height Actual Filter Size 9 3 4"w x 25 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location ceiling and sidewall Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter