Brand Name: Air Vent
*Height: 22 in.
*Width: 19.5 in.
*Length: 19.5 in.
*Diameter: 12 in.
*Finish: Mill
*Material: Steel
*Product Type: Turbine and Base
*Area Vented: 13680 sq. ft.
*Interior Louver: Yes
*Vent Type: Wind Turbines
*Airflow: 15 CFM
*Pitch: 3/12 - 12/12
*Shape: Circle
*CFM: 969 CFM
*Opening Dimension: 12 in.