22" X 29" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 24 5/8" X 31 5/8"] w8h8 + Product Details Size -

+ Product Details Size - 12"w X 4"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 38 5/8" width X 20 5/8" height -

+ Product Details Size – 36"w X 30"h is the size for the duct opening measurement only

+ Product Details Size – 12" X 4" is the size for the duct opening (floor/vent hole) measurement only

actual front end outer dimensions are approximately 14 5/8" width X 14 5/8" height

22" X 29" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 24 5/8" X 31 5/8"] w8h8 + Product Details Size -+ Product Details Size 22"w X 29"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 24 5 8" width X 31 5 8" height. High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Ceiling Design Fixed hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and