24" x 24" Cube Core Eggcrate Return Air Grille w24h24 and the second number represents

and the second number represents the height

+ Product Details Size – 14"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are 11

+ Product Details

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

24" x 24" Cube Core Eggcrate Return Air Grille w24h24 and the second number represents+ Product Details Size 24" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" X 25. 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