Ventilator, Turbine, EMPIRE VENTILATION, Mfr# TV12G

Wind-Driven Turbine Exhaust Ventilator, Bracing Location External, Head Diameter 19 in, Throat Diameter 12 in, Airflow @ 4 mph 631 cfm, Metal Material Thickness 24 ga, Overall Height 17 in, Overall Width 19 in, Housing Material Steel, Bearing Type Lower Thrust Ball Bearing, Oilless Bronze Upper Bearing, Bracing Material Aluminum, Housing Finish Galvanized, Installation Requirements Base for New Installations, Flashing