12" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 34 5/8"] Width_20in only measure the "hole" in

only measure the "hole" in the wall/duct

85" width X 21

actual front end outer dimensions are approximately 32 5/8" width X 16 5/8" height

Some of the best features aren't readily apparent

12" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 34 5/8"] Width_20in only measure the "hole" in+ Product Details Size 12"w X 32"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 34 5 8" height Actual Filter Size 11 3 4"w x 31 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