Master Flow ERV4WW Power Attic Ventilators Roof Mount, Weather Wood Eco_Friendly Unique sloped handle optimizes hand

Unique sloped handle optimizes hand position for quick hand-over-hand rewinds

Wrench included

Steel ball bearing roller

Length: 3 (1-7/8")

Master Flow ERV4WW Power Attic Ventilators Roof Mount, Weather Wood Eco_Friendly Unique sloped handle optimizes handPre 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. Highlights: Roof Mount Galvanized Steel Max Attic Size = 1600 Sq Ft Net Free Area = 480 Sq. Ft. Color : weather wood Airflow Cfm