20" X 50" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 52 5/8"] white designed for optimal airflow and

designed for optimal airflow and efficiency

For example

With a 8" diameter for the duct opening measurement

actual front end outer dimensions are approximately 23

High Quality – High-quality steel with counter-sunk screw holes (screws included) and no sharp edges

20" X 50" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 52 5/8"] white designed for optimal airflow and+ Product Details Size 20"w X 50"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 52 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