Cold Water High Pressure Cleaner 3 cyl. inline plunger pump 22 l/min (brass pump head, ceramic plungers) flanged to electric motor motor/pump rpm 1420 1/min – slowly, quietly running machine pump system pressureless by closing spray pistol (stand by operation) thermo valve protects pump from overheating water shortage control protects pump from cavitation water micro filter protects pump from soiled water motor/pump unit protected by solid, surrounding steel frame (powder coated) chassis with 4 wheels on twin axle, locking brake hose swivel prevents hp hose from messing up