36" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 14 5/8"] w34h34 line-height: 20px

line-height: 20px

+ Product Details Size - 18"w X 4"h is the size for the duct opening measurement only

For example

+ Product Details Size – 10"w X 2"h is the size for the duct opening measurement only

[Outer Dimensions: 38

36" X 12" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 14 5/8"] w34h34 line-height: 20px+ Product Details Size 36"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 38 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