As robust as it is powerful: the HD 9/20-4 S St Classic stationary cold water high-pressure cleaner for tough cleaning applications. Assembly operation and maintenance that is so effortless it's child's play.The HD 9/20-4 S St Classic cold water high-pressure cleaner designed for consistent long-lasting and ultra-reliable operation even under the toughest working conditions. To fulfil its remit the solidly built stationary machine is fitted with a strong easy-to-adjust crankshaft pump with a high-quality brass cylinder head and a low-speed 4-pole motor with automatic shutoff and air/water cooling. While the pump is well-protected by a built-in and easy-to-clean water filter the other standard equipment speaks for itself with trigger gun lance 10-meter high pressure hose and a power nozzle all included in the scope of supply. For added speed and convenience these all come with our innovativeEASY!Lockquick-release couplings. For the very best cleaning performance the machine's 7 kW moto