Master Flow ERV6SMWW Power Attic Vent, 720 sq-in Net Free Ventilating Area, 1500 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.