LL Building Products AIC14WW Internally Braced Turbine Ventilator, 14" Roll Valley -10 degrees Fahrenheit to 150

-10 degrees Fahrenheit to 150 degrees operating temperature

Increased capacity for up to 6-5/8" crown molding (vertically nested)

Simpler to sand and won't prevent sandpaper

Made of heat treated forged steel

02% by Volume

LL Building Products AIC14WW Internally Braced Turbine Ventilator, 14" Roll Valley -10 degrees Fahrenheit to 150Permanently 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, 2 piece head base for faster, easier installation.