32" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 34 5/8" X 22 5/8"] Aluminum - Cube Core + Product Details Size –

+ Product Details Size – 24"w X 16"h is the size for the duct opening measurement only

this easy-to-install grille fits seamlessly into any standard return filter opening

Actual Filter Size – 11 3/4"w x 21 3/4" x 1"

Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns and to hold steady and at full diameter in all applications

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32" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 34 5/8" X 22 5/8"] Aluminum - Cube Core + Product Details Size –+ Product Details Size 32"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 34 5 8" width X 22 5 8" height Actual Filter Size 31 3 4"w x 19 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.