30" X 16" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 32 5/8" X 18 5/8"] w25h25 + Product Details Size –

+ Product Details Size – 36"w X 12"h is the size for the duct opening measurement only

this grille offers durability and resistance to rust and corrosion

and Diffusers

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+ Product Details Size - 10"w X 14"h is the size for the duct opening measurement only

30" X 16" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 32 5/8" X 18 5/8"] w25h25 + Product Details Size –+ Product Details Size 30"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32 5 8" width X 18 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