6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Return Optimized Comfort: By putting airflow

Optimized Comfort: By putting airflow control at your fingertips

5/8" - 2579 PSI

actual front end outer dimensions are approximately 18 5/8" width X 18 5/8" height

12"w X 3"h Is The Size For The Duct Opening Measurement Only

6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Return Optimized Comfort: By putting airflow+ 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