24" X 8" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 26 5/8" X 10 5/8"] w18h18 + Product Details Size -

+ Product Details Size - 32"w X 14"h is the size for the duct opening measurement only

if your hole is 20" wide by 14" tall

+ Product Details High Quality - Aluminum housing on the outside and on the inside for the best insulation value

+ Product Details Size - 36"w X 20"h is the size for the duct opening measurement only

+ Product Details Size - 22"w X 36"h is the size for the duct opening measurement only

24" X 8" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 26 5/8" X 10 5/8"] w18h18 + Product Details Size -+ Product Details Size 24"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 26 5 8" width X 10 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