Walchem Solenoid Driven Metering Pump, 120vac, 0.9gph 105psi max, Auto Degas Valve, Manual Air Vent Valve, PVC/FKN/HC/Ceramic liquid end, 3/8"od tubing, 360:1 turndown digital speed, Flexcon connections. Includes foot valve and weight, injection check valve, 20ft x 3/8"OD LLDPE tubing.