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

+ Product Spec Sheet Return Air Grille Spec Sheet

75" width X 37

actual front end outer dimensions are approximately 28 5/8" width X 26 5/8" height

Actual Filter Size – 13 3/4"w x 13 3/4" x 1"

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