20" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 22 5/8" X 16 5/8"] Compatible With Duct 10in + Product Details Size –

+ Product Details Size – 34"w X 12"h is the size for the duct opening measurement only

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3/8" - 4223 PSI

20" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 22 5/8" X 16 5/8"] Compatible With Duct 10in + Product Details Size –+ Product Details Size 20"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 16 5 8" height Actual Filter Size 19 3 4"w x 13 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.