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

+ Product Details Size – 12" X 2" is the size for the duct opening (floor/vent hole) measurement only

then you'll need a 14-inch round vent

+Product Details Size – 2"h x 12"w is the size for the duct opening measurement only

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

+ Product Details

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