12" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 36 5/8"] Powder-Coat + Product Details Size –

+ Product Details Size – 10"w X 16"h is the size for the duct opening measurement only

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actual front end outer dimensions are approximately 20 5/8" width X 28 5/8" height

12" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 36 5/8"] Powder-Coat + Product Details Size –+ Product Details Size 12"w X 34"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 36 5 8" height Actual Filter Size 11 3 4"w x 33 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