22" X 26" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 28 5/8"] 18in diameter actual front end outer dimensions

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

actual front end outer dimensions are approximately 10 5/8" width X 16 5/8" height

+ Product Details Size - 8"w X 24"h is the size for the duct opening measurement only

Slots are angled to diversify the airflow in 2 way direction

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22" X 26" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 28 5/8"] 18in diameter actual front end outer dimensions+ Product Details Size 22"w X 26"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 24 5 8" width X 28 5 8" height Actual Filter Size 21 3 4"w x 25 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.