22" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 30 5/8"] Color_White R value rating of insulation

R value rating of insulation - R3

actual front end outer dimensions are approximately 16 5/8" width X 28 5/8" height

+ Product Details Size - 12"w X 22"h is the size for the duct opening measurement only

Actual Filter Size – 17 3/4"w x 25 3/4" x 1"

Installation is hassle-free

22" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 30 5/8"] Color_White R value rating of insulation+ Product Details Size 22"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 24 5 8" width X 30 5 8" height Actual Filter Size 21 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 Installation Location Sidewall & ceiling Design Removable frame for easy filter change & cleaning uses a 1" thick filter. Our