14" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 16 5/8" X 38 5/8"] Insulated Line Set + Product Details Size -

+ Product Details Size - 12"w X 12"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 14"h is the size for the duct opening measurement only

+ Product Details Size - 4"w X 32"h is the size for the duct opening measurement only

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+ Product Details Size – 8"w X 6"h is the size for the duct opening measurement only

14" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 16 5/8" X 38 5/8"] Insulated Line Set + Product Details Size -+ Product Details Size 14"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 38 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