22" x 22" Cube Core Eggcrate Return Air Grille Width_20in + Product Details Size –

+ Product Details Size – 48"w X 24"h is the size for the duct opening measurement only

Engineered for easy installation

actual front end outer dimensions are approximately 36 5/8" width X 28 5/8" height

only measure the "hole" in the wall/duct

75"H – fits a 18" X 6" duct opening

22" x 22" Cube Core Eggcrate Return Air Grille Width_20in + Product Details Size –+ Product Details Size 22" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 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 electric