【Specific】: 115V, 60 HZ, 3-speed power 100/70/55 watts, 1/25 - 1/8 HP, up to 20 feet head, max working pressure 10 bar(145 PSI). Max flow 17 GPM. Inner liquid temperature range 36℉-230℉. Power Cord 2.8 ft..【Features】: Pump body made from the heavy duty cast iron. Pumps work efficient, quiet running, low energy consumption, and maintenance-free design: no need to replace mechanical seals or couplers..【Wide Application】: Our recirculation pump is an universal replacement pump, can replace most of hot water recirculating systems, is compatible for solar water heater, boiler and domestic water boost pressure etc..【Easy to Install】: Designed with cast iron flanges and inset check valve. Fittings include 2 Gaskets, 4 Bolts, 4 Nuts. Use the universal adjustable wrench connect the pump to the pipework..【5 Years Warranty 】: Our recirculation pumps reach the Class H insulation & IP44 protection. We offer 5-year warranty period for all our pumps. Questions like missing fittings, contact us directly for assistance. We will provide support as soon as we could.