12" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 20 5/8"] w18h18 please note that the total

please note that the total outer dimensions of the grille measure 10" in diameter

actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height

+ How To Measure A Grille Overall Size:

+ Product Details Size - 16"w X 32"h is the size for the duct opening measurement only

12" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 20 5/8"] w18h18 please note that the total+ Product Details Size 12"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 20 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