Lochinvar & A.O. Smith 100277784 Impeller 320074-702 Full-Size Orifice: Engineered to provide

Full-Size Orifice: Engineered to provide maximum flow capacity with minimal pressure drop across the 1/4" NPT connections

The MERV 11 rating ensures the capture of particles as small as 1 to 10 microns

Built for longevity in commercial environments

Common Questions When should the packing spring be replaced during valve service

The inclusion of a 5-foot capillary tube allows for flexible bulb placement

Lochinvar & A.O. Smith 100277784 Impeller 320074-702 Full-Size Orifice: Engineered to provideThe Lochinvar & A. O. Smith 100277784 Impeller is a critical OEM replacement part engineered for high recovery commercial water heaters and industrial boiler systems. As the professional grade successor to the legacy 100133556 part number, this centrifugal pump impeller ensures precision fluid dynamics and optimal head pressure within the heat exchanger circuit. Built to withstand the rigorous cycling of hydronic heating equipment, the 100277784