34" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 34 5/8"] Material_Steel the actual front end outer

the actual front end outer dimensions are 7" in diameter

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 25" OR 25" X 16" duct opening (measured at the opening)

Actual Filter Size – 7 3/4"w x 15 3/4" x 1"

+ Product Details Size – 26"w X 10"h is the size for the duct opening measurement only

+How To Measure A Grille Overall Size:

34" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 34 5/8"] Material_Steel the actual front end outer+ Product Details Size 34"w X 32"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 36 5 8" width X 34 5 8" height Actual Filter Size 33 3 4"w x 31 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.