... 240 volt and 110 volt.4, Low pressure, low volume water, pressure system pumps with internal Bypasses.5, ... swith, snap-in connection, special valve and diagphragm for easy priming.8, Moisture resistant O ring seal ... motor, double ball bearing motor and Rubber mounted for smooth, quiet operation, sealed drive bearings, corrosion resistant9 ... noise, corrosion resistant high pressure water pump for car wash