20" x 20" Cube Core Eggcrate Return Air Grille Powder-Coat Every grille has a front

Every grille has a front end frame that will overlap at the wall joint

This grille has a high standard of design

This thoughtful design ensures optimal air circulation for your HVAC system

unrestricted airflow with a precise 50° angled design

and versatile for any project

20" x 20" Cube Core Eggcrate Return Air Grille Powder-Coat Every grille has a front+ Product Details Size 20" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" X 21. 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