26" X 22" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 24 5/8"] Return Grille margin-right: 12px

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actual front end outer dimensions are approximately 25

+ Product Details Size - 30"w X 4"h is the size for the duct opening measurement only

High Quality – High-quality aluminum with counter-sunk screw holes (screws included) and no sharp edges

actual front end outer dimensions are approximately 26 5/8" width X 38 5/8" height

26" X 22" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 24 5/8"] Return Grille margin-right: 12px+ Product Details Size 26"w X 22"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 24 5 8" height Actual Filter Size 25 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.