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

+ Product Details Size – 24"w X 36"h is the size for the duct opening measurement only

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75" width X 21

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

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