24" x 28" or 28" x 24" Cube Core Eggcrate Return Air Grille w32h32 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 32" or 32" x 6" duct opening (measured at the opening)

Actual Filter Size – 17 3/4"w x 17 3/4" x 1"

875" height

+ Product Details Size – 12" x 12" is the size for the duct opening measurement only

+ Product Details Size – 8" round duct opening

24" x 28" or 28" x 24" Cube Core Eggcrate Return Air Grille w32h32 + Product Details Perfect Fit+ Product Details Size 24" x 28" or 28" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" X 29. 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