40" X 10" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 42 5/8" X 12 5/8"] Insulated Line actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 16 5/8" height

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+ Product Details Size - 20"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 10"w X 6"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

40" X 10" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 42 5/8" X 12 5/8"] Insulated Line actual front end outer dimensions+ Product Details Size 40"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 42 5 8" width X 12 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