BACOENG 1" 220V-240V BSP 3-Speed Control Circulator/Ciculating Pump for Solar Heater System With US Plug 1.Rated Power: 72/53/38W Inlet/Outlet: 1"BSP Voltage/Frequency: 230V/50HZ 2. Supersilent,environmentalprotection,aesthetics,easeofinstallation. 3. Built-in high sensitive electronic sensors, the water flow when we open the switch. 4. Materials,Pump housing: Cast Iron;Impeller: Corrosion-resistant, Composite, PES ;Shaft: Ceramic;Bearing: Carbon axial 5.Hightemperatureresistance,anti-fraying ,highefficiency,highflow,leak-tightness,lowconsumption