... torque and operating efficiency 2.Higher operating pressure and/or lower amperage than competitive pumps ... volt and 110 volt.4, Low pressure, low volume water, pressure system pumps with internal Bypasses.5, ... /CE/ISO9001:20007, Stainless steel bolts, water resistant pressure swith, snap-in connection, special valve and diagphragm ... switch, low noise, corrosion resistant car wash pressure water pump