LPH7MA-WTC3-F05 Pump Series E Plus Electronic Chemical Metering Pumps - E+ 115 240 GPD Max Flow Rate @ 35 PSI, Flow Control: 4-20mADC Direct with Stop. 115 Volts, 50/60 Hz, 1/2" OD Tube Connections, PVC Head & Fittings, Ceramic Valve Ball, TFE Seat..