24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door 170BL 25X16 Actual Filter Size – 31

Actual Filter Size – 31 3/4"w x 5 3/4" x 1"

providing maximum flexibility

With a 5" diameter for the duct opening measurement

+ Product Details 6"w X 9"h is the size for the drywall opening measurement only

24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door 170BL 25X16 Actual Filter Size – 31+ Product Details Size 24"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" width X 25. 75" height Actual Filter Size 23 3 4"w x 23 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.