Rice Hydro DEH-3C Roller Pump 6 GPM up to 400 PSI w/ 5.5HP Honda Motor Included in the RICE Hydro line of hydrostatic test pumps, are the models DE-3C mid volume, medium pressure pumps, designed for testing lines up to 16 inches in diameter. As with all RICE Hydro pumps, these units are durable, dependable and simple to run. On the DE-3C, a pulsation damper hose reduces liability while increasing operator safety. Polypropylene rollers (standard on RP-2C) afford exceptional smooth operation, and minimal maintenance with no valves to repair or replace. The pressure regulator with inlet bypass allows for precise setting of test pressure reducing pump wear, and minimizing repair costs.