20" X 16" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 18 5/8"] w8h8 + Product Details Size –

+ Product Details Size – 10"w X 20"h is the size for the duct opening measurement only

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

9% Pure Copper meeting ASTM B280 standards

[Outer Dimensions: 26

20" X 16" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 18 5/8"] w8h8 + Product Details Size –+ Product Details Size 20"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 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