50 Sq. In. NFA Aluminum round Back Static Roof Vent in Black
UL Certified & tested to withstand wind pressure speeds 200+ mph Active Ventilation Products Round Back vent product line is excellent at venting attic spaces for shingled sloped roofs. The Round Back vent is made of rust free aluminum with an 8 in.
14 in. mill finish aluminum no moving parts retrofit wind turbine
The Aura Gravity Vent operates on the principle of the Venturi Effect. When the wind blows against the outer louvers of the vent, it creates an upward draft, allowing air to flow out freely. Even the gentlest breeze can create exhaust ventilation.