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 + Product Details Size -

+ Product Details Size - 18"w X 30"h is the size for the duct opening measurement only

75" width X 13

actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height -

angle them down for effective warmth distribution

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

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 + Product Details Size -+ 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