12" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 30 5/8"] Powder-Coat + Product Details Size -

+ Product Details Size - 14"w X 10"h is the size for the duct opening measurement only

no sharp edges

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

75" width X 37

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 25" OR 25" X 16" duct opening (measured at the opening)

12" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 30 5/8"] Powder-Coat + Product Details Size -+ Product Details Size 12"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 30 5 8" height Actual Filter Size 11 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 Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter