Walchem EHE Series Solenoid Driven Metering Pump, 115vac 1.8A, 8.5gph 105psi max, Wetted parts: PVDF, PCTFE, Ceramic, PTFE. Manual stroke length and speed adjustment. External speed control from pulse signal (Div/Mult) or 4-20mA analog input. Includes 20ft x 1/2" LLDPE tubing, foot valve and weight, injection point BP/AS valve.