14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 6" Diameter Airflow – Improved airflow dynamics

Airflow – Improved airflow dynamics long neck bBody- reduced noise design - integrated spring fasteners

+ Product Details Size - 16"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 28"w X 20"h is the size for the duct opening measurement only

Heavier gauge than needed

The unique sponge gasket ensures an airtight seal

14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 6" Diameter Airflow – Improved airflow dynamics+ Product Details Size 14" x 34" or 34" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 35. 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