Compact air operated and hand liquid pumps… Pressure calibration pump, Hydrostatic hand pump, Burst pressure pump and many other applications: Compatible with all hydraulic fluids, water, solvents, mild chemicals, glycol, oils, liquefied CO2 and many more. Requires 15 – 100 Psi air drive pressure to operate, the L3 series pump is self priming for immediate operation. Hand pump attachment allows for manual operation when shop air is not available or for precision pressure control. Available in eight models to pressure up to 20,000 Psi (1379 Bar).