... come in 240 volt and 110 volt.4, Low pressure, low volume water, pressure system pumps with internal Bypasses.5, We produce ... Certificate: Rohs/CE/ISO9001:20007, Stainless steel bolts, water resistant pressure swith, snap-in connection, special valve and diagphragm ... corrosion resistant9, Stable performance, self priming, automatic switch, low noise, corrosion resistant car wash pressure water pump