12 in. Weathered Bronze Aluminum Externally Braced Whirlybird Wind Turbine Material:Aluminum 75 Rough Opening Width (In

75 Rough Opening Width (In

preventing expensive clogs and reducing dangerous gutter cleaning

Quick-Release Tension Minimum Blade Length 150 Returnable 180-Day Dust Collection Method 4 in

offering extreme hardness and durability

12 in. Weathered Bronze Aluminum Externally Braced Whirlybird Wind Turbine Material:Aluminum 75 Rough Opening Width (InWhirlybird turbines offer all of the essentials for energy savings and are geared towards going green while maximizing ventilation capacity. The Whirlybird's large flashing makes installation easy. An exclusive vari pitch base adjusts to a 12 12 roof pitch for use on many roof applications. When installed with adequate intake ventilation, the Whirlybird turbine reduces energy bills and the likelihood of winter ice buildup. Extends the life of