10" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 30 5/8"] Material_Aluminum + Product Details Size -

+ Product Details Size - 12"w X 20"h is the size for the duct opening measurement only

efficient airflow

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actual front end outer dimensions are approximately 26 5/8" width X 18 5/8" height

10" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 30 5/8"] Material_Aluminum + Product Details Size -+ Product Details Size 10"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 30 5 8" height Actual Filter Size 9 3 4"w x 27 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