10" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 30 5/8"] White Actual Filter Size – 17

Actual Filter Size – 17 3/4"w x 15 3/4" x 1"

+ Product Details Size – 12"w X 28"h is the size for the duct opening measurement only

+ Product Details Size – 16"w X 10"h is the size for the duct opening measurement only

The total outer size of this grille is the listed size plus 1

10" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 30 5/8"] White Actual Filter Size – 17+ Product Details Size 10"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 30 5 8" height Actual Filter Size 9 3 4"w x 27 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location ceiling and sidewall Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter