20" x 20" Cube Core Eggcrate Return Air Grille Material_Aluminum Experience the difference in quality

Experience the difference in quality with our sleek design and hassle-free functionality

production and finish on all products

Design – Designed to withstand bends and sharp turns without kinking

professional look

20" x 20" Cube Core Eggcrate Return Air Grille Material_Aluminum Experience the difference in quality+ Product Details Size 20" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" X 21. 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 electric