These centrifugal pumps are designed specifically for pool water circulation. The SCP series pumps are equipped with heavy duty permanent magnet, DC motors. The pump ends are constructed from high-performance thermoplastic and are extremely resistant to chemicals as well as mineral and algae deposits. For added protection, a basket strainer is incorporated into the suction side of the pump. They can also be used to fill open tanks, aerate ponds, circulate water for aqua culture or irrigate small farms. Inlet and discharge ports are 2" NPT and they operate at 45 to 90 VDC. SCP 42-47-10 operates up to 120 VDC and can pump 93 gpm at 0 psi. Use with SunPump Control PCB-120 (075-03041). They weigh 34 pounds.