30" X 20" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 32 5/8" X 22 5/8"] Return Grille + Product Details Size -

+ Product Details Size - 16"w X 6"h is the size for the duct opening measurement only

+ Product Details Size - 34"w X 16"h is the size for the duct opening measurement only

Its smooth

+ Product Details Size - 10"w X 26"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 16 5/8" width X 26 5/8" height

30" X 20" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 32 5/8" X 22 5/8"] Return Grille + Product Details Size -+ Product Details Size 30"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32 5 8" width X 22 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