22" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 14 5/8"] Aluminum All steel wire is applied

All steel wire is applied between PET surfaces to prevent corrosion (oxidization)

Crafted from high-quality red oak wood

5" width x 13

+ Product Details Size – 36"w X 8"h is the size for the duct opening measurement only

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22" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 14 5/8"] Aluminum All steel wire is applied+ Product Details Size 22"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 24 5 8" width X 14 5 8" height Actual Filter Size 21 3 4"w x 11 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.