PD046-A20AI, LMI PD Series Chemical Metering Pump, 0.68 GPH (2.6 LPH) @ 250 PSI (17.0 bar), 110-120V US Plug, UL, 50/60 Hz, Acrylic / PVC (Auto Prime Head - Degassing Head w/Double Ball Check Valves). Manual Control, 1/4” OD Tubing with PTFE / Polyprel® Seats / O-Ring. LE-A20AI Liquid End Assembly and RPM-A20A RPM Kit Available.