Walchem Solenoid Driven Metering Pump, 115vac, 3.2gph at 30psi, PVC/FKM/CE liquid end materials, 1/2"od tubing connections 360:1 turndown using digital speed control. Includes foot valve and weight, injection check valve, 20ft x 1/2"OD LLDPE tubing. Manual bleed valve on discharge of pump.