Air Vent 14 Aluminum Externally braced Roof Turbine Vent

A non-electric alternative to ventilation, these vents use the natural force of wind and air pressure to spin and vent out stale attic air. Turbine vents provide a low-cost ventilation alternative in areas where wind speeds of at least 5 mph are typical. Maintenance free dual bearing system The two-piece base fits roof pitches from 3/12 to 12/17 Dual bearing system assures long-lasting quiet operation with no metal parts to squeak Comes in four different colors. Mill, Black, Brown and Weatherwood Lifetime limited warranty Aluminum Maintenance-free dual bearing system Adjustable base and easy installation Heavy-duty polypropylene bracing system CA Residents: Prop 65 WARNING(S)