6" x 8" or 8" x 6" Cube Core Eggcrate Return Air Grille 6in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 42 5/8" width X 22 5/8" height -

10"w X 8"h Is The Size For The Duct Opening Measurement Only

Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns and to hold steady and at full diameter in all applications

actual front end outer dimensions are approximately 16 5/8" width X 8 5/8" height

With precise measurements and easy installation

6" x 8" or 8" x 6" Cube Core Eggcrate Return Air Grille 6in diameter actual front end outer dimensions+ Product Details Size 6" x 8" or 8" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" width X 9. 75" height. 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%,