24" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 26 5/8" X 38 5/8"] Return Grille Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)

+ Product Details Size - 12"w X 18"h is the size for the duct opening measurement only

Actual Filter Size – 23 3/4"w x 17 3/4" x 1"

24" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 26 5/8" X 38 5/8"] Return Grille Actual Filter Size – 29+ Product Details Size 24"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 26 5 8" width X 38 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