The three-phase HD 4.5/32-4S Ec cold water pressure washer is a user friendly workhorse. Thanks to its upright construction, the unit takes up less space than a conventional machine and is easier to maneuver, especially up and down stairs. Its large diameter, tubed pneumatic tires ensure maximum mobility even over difficult terrain. The push handle adjusts to the most comfortable height for the user. Accessories can be stored in a separate nozzle compartment. The easy-press trigger gun is comfortable, requiring less effort to hold and operate, and features a servopress controller for convenient adjustment of pressure and water flow rate. The spray lance can be pivoted 360° while operating at full pressure. Other features include a pressure switch control that turns off the pump as soon as the trigger is release, 4-pole water cooled motor, pneumatic tires, and an electronic monitoring system for the motor and pump. The built-in detergent tank has a capacity of 6 liters. The chemical-resistant brass cylinder head and ceramic pistons are combined with an efficient air-water cooling system to guarantee a long service life.