34" x 25" Steel Return Air Filter Grill for 1" Filter Removable Face/Door 16" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 28 5/8" height

and Diffusers

+ Product Details Size - 34"w X 26"h X 2"d (for duct opening measurement only)

Upgrade your system with our high-quality galvanized steel round duct

Not for use with capacitor start or capacitor run motors

34" x 25" Steel Return Air Filter Grill for 1" Filter Removable Face/Door 16" Diameter actual front end outer dimensions+ Product Details Size 34"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 36 5 8" width X 27 5 8" height Actual Filter Size 33 3 4"w x 24 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.