36" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 38 5/8" X 20 5/8"] Aluminum - Cube Core while its modern design complements

while its modern design complements any space

reducing energy costs and maximizing HVAC system lifespan

+ Product Details Size – 16"w X 14"h is the size for the duct opening measurement only

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

Installation Location – Sidewall and ceiling

36" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 38 5/8" X 20 5/8"] Aluminum - Cube Core while its modern design complements+ Product Details Size 36"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 38 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 sidewall and ceiling Design removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on