6" x 14" or 14" x 6" Cube Core Eggcrate Return Air Grille Adjustable Return rust-free aluminum construction with smooth

rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)

+ Product Details Size – 10" x 30" or 30" x 10" is the size for the duct opening measurement only

75" width X 13

875" width X 21

6" x 14" or 14" x 6" Cube Core Eggcrate Return Air Grille Adjustable Return rust-free aluminum construction with smooth+ Product Details Size 6" x 14" or 14" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 15. 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