50" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 52 5/8" X 22 5/8"] w10h10 /* Adding space between bullet

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+ Product Details Size - 34"w X 20"h is the size for the duct opening measurement only

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actual front end outer dimensions are approximately 20 5/8" width X 12 5/8" height

+ Product Details Size - 25"w X 30"h is the size for the duct opening measurement only

50" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 52 5/8" X 22 5/8"] w10h10 /* Adding space between bullet+ Product Details Size 50"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 52 5 8" width X 22 5 8" height High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall & ceiling Design removable frame for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your