Cast Iron Circulator Pump 1/8 HP, 3-Speed, 55 LPM

Hot water recirculating pump performance that speeds heat-up and improves whole-home circulation for boilers, radiators, and underfloor heating. Built with a cast iron body for high-temperature operation and tight sealing, it helps overcome pipe friction for steadier flow. The 3-speed adjustment lets you tune circulation to your system’s needs, while quiet operation keeps living spaces comfortable. Threaded connections support straightforward swaps for pumps with matching specs.

• Delivers adjustable flow with 3 speeds to match radiators, boilers, and floor heating loops


• Moves hot water efficiently up to 14.53 GPM (55 LPM) and up to 19.69 ft (6 m) head lift


• Runs quietly below 45 dBA to reduce noise near living areas and underfloor zones


• Installs easily with threaded connection; includes seals and fittings for replacement or new setups


• Protects operation with IP44-rated dust and splash resistance for dependable daily cycling

Upgrade your heating circulation with a compact pump designed for stable hot water flow across longer pipe runs. The cast iron construction supports demanding temperatures, while the multi-speed control helps balance comfort, response time, and energy use for your specific system. Ideal for use with water heaters, wall-mounted boilers, radiators, and underfloor heating manifolds where consistent circulation matters. Grab yours today and get smoother, faster heat delivery throughout the home.

• Power: 1/8 HP (93 W ±15%)


• Voltage/Frequency: AC 220–240 V, 50 Hz


• Max flow rate: 14.53 GPM / 55 LPM ±15%


• Max head lift: 19.69 ft / 6 m ±15%


• Connection type: Threaded


• Working water temperature: 35.6–230°F (2–110°C)


• Noise: < 45 dBA


• Ingress protection: IP44


• Material: Cast iron


• Dimensions: 5.12 x 5.12 x 4.92 in (130 x 130 x 125 mm)


• Net weight: 5.29 lb (2.4 kg)