... 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, ... bolts, water resistant pressure swith, snap-in connection, special valve and diagphragm for easy priming.8, Moisture ... switch, low noise, corrosion resistant high pressure water pump for car wash