28" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 38 5/8"] w12h12 actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 34 5/8" height

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

provides a modern look and quiet operation due to its half-inch by half-inch cube design

with actual outer dimensions of 26

28" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 38 5/8"] w12h12 actual front end outer dimensions+ Product Details Size 28"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 30 5 8" width X 38 5 8" height Actual Filter Size 27 3 4"w x 35 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.