6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 24" X 4" duct openings

actual front end outer dimensions are approximately 26 5/8" width X 38 5/8" height -

controlled by a switch

Multi-shutter damper with easy lever for precise airflow control

Heavier gauge than needed

6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel Ideal for Walls & Ceilings:+ Product Details Size 6" x 10" or 10" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 11. 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