28" X 22" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 24 5/8"] return grille 75" width X 9

75" width X 9

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 20" duct opening (measured at the opening)

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

+ Product Details Size – 26"w X 22"h is the size for the duct opening measurement only

actual front end outer dimensions are 15

28" X 22" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 24 5/8"] return grille 75" width X 9+ Product Details Size 28"w X 22"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 30 5 8" width X 24 5 8" height Actual Filter Size 27 3 4"w x 21 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.