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

+ Product Details Size - 24"w X 18"h is the size for the duct opening measurement only

Powder-Coat Finish - Smooth

+ Product Details Size - 12"w X 8"h is the size for the duct opening measurement only

75" width X 33

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