28" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 14 5/8"] Material_Aluminum it ensures long-lasting durability

it ensures long-lasting durability

The total outer size of this grille is the listed size plus 2 and 5/8"

+ Product Details Size – 26"w X 32"h is the size for the duct opening measurement only

thanks to counter-sunk screw holes and included screws

+ Product Details Size – 10" X 2" is the size for the duct opening (floor/vent hole) measurement only

28" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 14 5/8"] Material_Aluminum it ensures long-lasting durability+ Product Details Size 28"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 30 5 8" width X 14 5 8" height Actual Filter Size 27 3 4"w x 11 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.