20" X 24" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 26 5/8"] w34h34 + Product Details Size –

+ Product Details Size – 18"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 28"w X 36"h is the size for the duct opening measurement only

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If your hole is 14" wide by 20" tall

75" width X 25

20" X 24" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 26 5/8"] w34h34 + Product Details Size –+ Product Details Size 22"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 24 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