Industrial Build: High-density housing designed to withstand the vibration and high-heat environments of gas furnace burners

Automatic Reset Logic: Eliminates the need for manual intervention by restoring operation once the system reaches safe cooling differentials

the HLO-1004 bushing serves as the critical interface that prevents shaft scoring while maintaining precise torque transfer

the relay remains de-energized even after the water level is restored

Supplied with 450°F high-temperature sealant for airtight flue connections

Grundfos 59896180 Pump 322838-753 Industrial Build: High-density housing designedThe Grundfos 59896180 UPS15 42F is a high performance 3 speed circulator pump engineered for precision flow control in closed loop hydronic heating and cooling systems. Built with a cast iron housing and featuring a 1 25 HP wet rotor design, this unit delivers a maximum flow of 17. 5 GPM and a maximum head of 15. 5 feet. The 230V circulator pump utilizes a canned rotor design where the pump and motor form an integral unit without a shaft seal,