36" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 20 5/8"] w18h18 + Product Details Size -

+ Product Details Size - 24"w X 32"h is the size for the duct opening measurement only

please note that the total outer dimensions of the grille measure 8" in diameter

actual front end outer dimensions are approximately 20 5/8" width X 38 5/8" height -

1-1/8” - 2334 PSI

36" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 38 5/8" X 20 5/8"] w18h18 + Product Details Size -+ 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 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