18" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 20 5/8" X 14 5/8"] Insulated Line Set actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 20 5/8" height -

expanding or retracting the gap to meet your precise needs

Every grille has a front end frame that will overlap at the wall joint

+ Product Details Size - 32"w X 8"h is the size for the duct opening measurement only

1/2” - 3119 PSI

18" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 20 5/8" X 14 5/8"] Insulated Line Set actual front end outer dimensions+ 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