18" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 20 5/8" X 14 5/8"] Color_White + Product Details Size –

+ Product Details Size – 8" x 20" or 20" x 8" is the size for the duct opening measurement only

antique bronze

+ Product Details Size – 10"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 10" x 14" or 14" x 10" is the size for the duct opening measurement only

18" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 20 5/8" X 14 5/8"] Color_White + Product Details Size –+ Product Details Size 18"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 20 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