Rice Hydrostatic Test Pump EL1A low volume medium pressure hydrostatic test pump designed for testing sprinkler systems, irrigation lines, pressure vessels, plant process piping, and small diameter water lines, 3 GPM up to 500 PSI, 1 HP Electric Motor, TE, 110/220 Volt, 50/60 HZ, Automatic Pressure regulator with inlet bypass, Stainless Steel liquid-filled gauge ensures accurate readings, Rugged roll cage construction, protects pump from damage