24" X 24" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 26 5/8" X 26 5/8"] 8" Diameter /* more inner breathing room

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+ Product Details Size - 28"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 34"h is the size for the duct opening measurement only

+ Product Details Size – 20"w X 24"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

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