32" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 34 5/8" X 20 5/8"] Powder Coated actual front end outer dimensions

actual front end outer dimensions are approximately 20 5/8" width X 22 5/8" height -

actual front end outer dimensions are approximately 24 5/8" width X 30 5/8" height

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

+ Product Details Size – 18"w X 10"h is the size for the duct opening measurement only

+ Product Details Size - 18"w X 34"h is the size for the duct opening measurement only

32" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 34 5/8" X 20 5/8"] Powder Coated actual front end outer dimensions+ Product Details Size 32"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 34 5 8" width X 20 5 8" height Actual Filter Size 31 3 4"w x 17 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.