18" x 22" or 22" x 18" Cube Core Eggcrate Return Air Grille flat stamped steel 875" width X 18" height

875" width X 18" height

+ Product Details Size - 26"w X 20"h is the size for the duct opening measurement only

+ Product Details Size - 6"w X 32"h is the size for the duct opening measurement only

Tough reinforced metallized polyester jacket - tear and puncture resistant

+ Product Details Size - 22"w X 6"h is the size for the duct opening measurement only

18" x 22" or 22" x 18" Cube Core Eggcrate Return Air Grille flat stamped steel 875" width X 18" height+ Product Details Size 18" x 22" or 22" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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