Master Flow ERV5WW Power Attic Vent, 600 sq-in Net Free Ventilating Area, 1250 cfm Air, Steel

Pre-wired roof mount attic vent and thermostat control, helps exhaust large amounts of hot and humid air from your attic, helps protect your roofing system and promotes your home's energy efficiency, energy-efficient PSC (permanent-split capacitor), includes internal heavy-duty screen which helps prevent animal infestation.