20" X 20" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 22 5/8"] Insulated Line Set actual front end outer dimensions

actual front end outer dimensions are approximately 18 5/8" width X 16 5/8" height

+ Product Details Size – 12"w X 18"h is the size for the duct opening measurement only

Achieve the perfect airflow with adjustable control by rotating the middle disk

+ Product Details Size – 16"w X 24"h is the size for the duct opening measurement only

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