16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille Color_White + Product Details Size –

+ Product Details Size – 6" x 36" or 36" x 6" is the size for the duct opening measurement only

+ Product Details Size - 22"w X 20"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 22"h is the size for the duct opening measurement only

The integral multi-shutter damper with a convenient handle operator ensures that you can easily adjust the air volume

16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille Color_White + Product Details Size –+ Product Details Size 16" x 22" or 22" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 23. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing