ProVent UPV22480 Roof Ventilator, 26 sq-in Net Free Ventilating Area, Plastic, Black

Ideal for premium construction and for difficult applications like re-insulation and spray foam. "ProVent" may be installed prior to the soffit panel installation without fear of blowout. Made with Pro-Grade tear-resistant high-impact plastic. Rigid vent construction eliminates breakage during re-insulation. Full joist coverage for maximum air flow.