Master Flow ERV4WW Power Attic Ventilators Roof Mount, Weather Wood Entrance Finish=Gloss

Finish=Gloss

Size 4 x 12

Bit has a spiral flute all the way up to the drilling head for rapid dust removal centric tip

Lightweight tool made from one piece of flexible stainless steel with aluminum mounting

Master Flow ERV4WW Power Attic Ventilators Roof Mount, Weather Wood Entrance Finish=GlossPre 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