36" x 36" Cube Core Eggcrate Return Air Grille Width_20in This thoughtful design ensures optimal

This thoughtful design ensures optimal air circulation for your HVAC system

Works for every air conditioning & refrigeration application including ductless mini-split

One Towards The Top Of The Door

6" width X 13

with no sharp edges to worry about

36" x 36" Cube Core Eggcrate Return Air Grille Width_20in This thoughtful design ensures optimal+ Product Details Size 36" x 36" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 75" X 37. 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