the 100208509 provides the rugged durability required for high-cycle applications

937" shaft diameters

and correctional facilities where plastic enclosures are prone to damage

Durable Construction: Engineered with heat-resistant polymers to withstand the thermal cycling adjacent to the heat exchanger

Robertshaw FK-180-RT Fan Kit 328140-751 the 100208509 provides the ruggedThe Robertshaw FK 180 RT Fan Kit is a heavy duty air distribution solution engineered for industrial grade hearth products and commercial heating systems. Designed as a universal fireplace blower replacement, this kit features sealed ball bearing construction to ensure ultra quiet operation and long term mechanical reliability under high temperature conditions. The system utilizes dual fan blades to maximize CFM, effectively increasing air circulation