The battery-powered pressure sprayer PSU 4-18 helps you spread liquids in the garden to maintain and protect your plants. Whether for fertilising, pest control, weed control or watering - the PSU 4-18 is perfect for all mentioned applications. Exhaustive manual pumping is no longer required for pressure build-up. A simple press of a button activates the pump. The spray jet can be switched on as required, set to continuous operation or infinitely adjusted directly at the spray head from a fine mist to the point jet. The shoulder strap facilitates carrying the pressure sprayer so you always have one hand free. The 4-litre tank has an integrated fill-level indicator and the tank lid also serves as a measuring cup for measuring liquids. The lance can be extended to 75 cm for ergonomic work, even in more distant areas. For space-saving storage, the lance can be removed and secured to the lance clamp on the battery holder. This unit runs on an 18V battery from the Kärcher battery platform, so you can also use it in many other Kärcher 18V devices.