20" X 40" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 42 5/8"] w18h18 actual front end outer dimensions

actual front end outer dimensions are approximately 32 5/8" width X 32 5/8" height -

Plain Ends - Gives you the freedom to cut and flare at your own project needs

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actual front end outer dimensions are approximately 41

actual front end outer dimensions are approximately 26 5/8" width X 20 5/8" height

20" X 40" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 42 5/8"] w18h18 actual front end outer dimensions+ Product Details Size 20"w X 40"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 42 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