36" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 38 5/8"] Round Duct Pipe + Product Details Size &

+ Product Details Size & Compatibility – The size of the side round ceiling box is 10" X 10" X 6" and it is compatible with duct 6"

Actual Filter Size – 31 3/4"w x 23 3/4" x 1"

Type: End Cap Fitting

or diffusers in the home

36" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 38 5/8"] Round Duct Pipe + Product Details Size &+ Product Details Size 36"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 38 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 Fixewd hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and