20" x 22" or 22" x 20" Cube Core Eggcrate Return Air Grille w16h16 To Maximize Ventilation Results

To Maximize Ventilation Results

actual front end outer dimensions are 7

+ Product Details Size - 16"w X 12"h is the size for the duct opening measurement only

By means of the smooth surface

actual front end outer dimensions are approximately 12 5/8" width X 12 5/8" height -

20" x 22" or 22" x 20" Cube Core Eggcrate Return Air Grille w16h16 To Maximize Ventilation Results+ Product Details Size 20" x 22" or 22" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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