24" x 28" or 28" x 24" Cube Core Eggcrate Return Air Grille Aluminum - Cube Core This thoughtful design ensures optimal

This thoughtful design ensures optimal air circulation for your HVAC system

actual front end outer dimensions are approximately 11

the actual front end outer dimensions are 7" in diameter

75"H – fits a 20" X 12" duct opening

+ Product Details Size – 28"w X 24"h is the size for the duct opening measurement only

24" x 28" or 28" x 24" Cube Core Eggcrate Return Air Grille Aluminum - Cube Core This thoughtful design ensures optimal+ 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