Grundfos UPS43-100F 1/3 HP 3-Speed Flanged Circulator Pump 115V Cast Iron Replaces UP43-75F 52722373

Grundfos UPS43-100F 1/3 HP 3-Speed Flanged Circulator Pump is built to handle hydronic heating and cooling systems well. With its wet rotor design, the pump moves water efficiently throughout HVAC systems, including boilers, radiant floor heating and fan coil units. With three speeds, the pump can be set to provide the exact flow the system needs. Being made of cast iron, it is both tough and resistant to corrosion and it also has a thermal overload protection feature for added safety. It reduces energy use and extends the life of the equipment by keeping the water moving consistently.