16" x 16" Cube Core Eggcrate Return Air Grille w20h20 production and finish on all

production and finish on all products

+ Product Details Size - 26"w X 12"h is the size for the duct opening measurement only

unrestricted airflow with a precise 50° angled design

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

16" x 16" Cube Core Eggcrate Return Air Grille w20h20 production and finish on all+ Product Details Size 16" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 17. 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