36" x 25" Steel Return Air Filter Grill for 1" Filter Removable Face/Door 9in diameter Actual Filter Size – 15

Actual Filter Size – 15 3/4"w x 11 3/4" x 1"

featuring a 3/8 inch space between louvers

+ Product Details Size – 8" x 22" or 22" x 8" is the size for the duct opening measurement only

please note that the total outer dimensions of the grille measure 7" in diameter

36" x 25" Steel Return Air Filter Grill for 1" Filter Removable Face/Door 9in diameter Actual Filter Size – 15+ Product Details Size 36"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 38 5 8" width X 27 5 8" height Actual Filter Size 35 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.