Master Flow GIC12WW Rotary Turbine Ventilator

LL Building GIC12WW Internally Braced Turbine Ventilator 12″ Weathered Wood

• Ball bearings
• 12 Throat Size
• Galvanized steel
• Dual bearing system
• 720 CFM air movement
• Color : Bronze

Permanently lubricated track system upper and lower stainless steel ball bearings prevents metal-to-metal contact encased to help prevent dirt dust sand and other foreign materials from damaging bearings for long life less friction smoother spin and wear resistance. Heavy-duty steel spider braces and case-hardened steel shaft for long-lasting strength/durability. Simple mechanically-locked two-piece head/base for faster easier installation. Pre-punched bottom/crimped collar of one-piece base fits tighter makes installation easier and allows for adjustability up to 12/12 pitch without removing turbine. Extra-large flashing and head with included bottom ring for easier installation and better weather protection. Double ribbed vanes with convex top direct even wind-driven rain away from the unit. Dade County/Texas Department of Insurance approved.