20" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 14 5/8"] Insulated Line Set height: 20px

height: 20px

this flex duct decreases the pressure loss and provides a more hygienic environment

lightweight aluminum

with actual outer dimensions of 18

+ Product Details Size - 28"w X 30"h is the size for the duct opening measurement only

20" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 14 5/8"] Insulated Line Set height: 20px+ Product Details Size 20"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 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