GAF Master Flow GC12E External Braced Rotary Turbine Ventilator, 12 in, Steel, Mill Galvanized

The GAF Master Flow 12 in. externally braced wind turbine is designed for efficient attic ventilation, reducing heat and moisture buildup to extend roof life. With a dual-bearing system for smooth spinning, it ensures durability and trouble-free performance. The adjustable base accommodates roof pitches from 2:12 to 12:12, while heavy-duty steel braces provide added strength. Easy to install with a two-piece design, this turbine enhances ventilation for up to 500 sq. ft. of attic space.

Galvanized steel construction for durability and weather resistance Externally braced design enhances stability and wind resistance Upper and lower dual-bearing system ensures smooth, reliable operation Encased bearings prevent dirt, dust, and debris buildup for long-lasting performance Mechanically locked, two-piece design allows for easy and quick installation Extra-large flashing on base provides superior weather protection Adjustable base fits roof pitches from 2:12 up to 12:12 for versatile installation 120 sq. in. net free area (NFA) for efficient attic ventilation Helps to remove heat and moisture to extend roof and attic lifespan Permanently lubricated track system ensures maintenance-free performance