Master Flow ERV4 Power Roof Mount Attic Fan Ventilators, 1000 CFM, Mill Impact Wrenches For quick and easy blade

For quick and easy blade changes

For 28-32 oz claw hammers

and dependability

Tool-free tank connections and dry-start protection for installation convenience

warming area

Master Flow ERV4 Power Roof Mount Attic Fan Ventilators, 1000 CFM, Mill Impact Wrenches For quick and easy bladeHighlights: Airflow CFM : 1000 Color : Mill Net Free Area = 480 Sq. Ft. 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 Energy efficient, uses up to 55% less electricity than typical