8" x 8" Cube Core Eggcrate Return Air Grille Color_Red Oak Wood This thoughtful design ensures optimal

This thoughtful design ensures optimal air circulation for your HVAC system

During summer

3 * Insulation density is 30kgs/CBM = 0

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 4

8" x 8" Cube Core Eggcrate Return Air Grille Color_Red Oak Wood This thoughtful design ensures optimal+ Product Details Size 8" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 9. 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 bills