12" X 30" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 32 5/8"] w32h32 + Product Details Size -

+ Product Details Size - 22"w X 26"h is the size for the duct opening measurement only

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+ Product Details Size - 28"w X 14"h is the size for the duct opening measurement only

If your duct opening is 14 inches in diameter

12" X 30" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 32 5/8"] w32h32 + Product Details Size -+ Product Details Size 12"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 32 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