Permanently lubricated track systemHead has galvanized steel rivets for rust resistance and reliabilityHeavy-duty steel spider braces and case-hardened steel shaft for long-lasting strength/durabilityDiameter : 12"Color : Black
"Ll Building" Wind Turbine Ventilators Permanently lubricated track system Head has galvanized steel rivets for rust resistance and reliability Heavy-duty steel spider braces and case-hardened steel shaft for long-lasting strength/durability Diameter : 12" Color : Black Dual bearing system Galvanized internal bracing
Brand: LL Building Products, Model: GIC12BL