6" x 14" or 14" x 6" Cube Core Eggcrate Return Air Grille Return + Product Details Size -

+ Product Details Size - 14"w X 36"h is the size for the duct opening measurement only

Installation Location – Sidewall or ceiling

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

Each grille is carefully packaged with cardboard backing to prevent damage during shipment

These grilles and registers give you an extra measure of quality that are visible to your family members and house guests

6" x 14" or 14" x 6" Cube Core Eggcrate Return Air Grille Return + Product Details Size -+ Product Details Size 6" x 14" or 14" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 15. 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