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Yellow Karcher cordless handheld pressure washer with black nozzle, white hose, and charger.

Karcher KHB 4-18 PLUS 18v Cordless Handheld Pressure Washer 21 Bar

by Karcher Home and Garden

£139.95from 3 retailers
GTIN04066529078292
EAN4066529078292
MPNKHB 4-18 PLUS
Prices updated 23 Jun 2026

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Product Description

The KHB 4-18 PLUS is a battery powered pressure washer which can be used independently of both the mains water supply and mains electricity, making it perfect for use in more remote locations. Operating at a medium pressure range, with a maximum flow rate of 170 litres per hour and a maximum bar pressure of 21, the tool comes with a 5 in 1 multi jet nozzle and can be used for more delicate tasks like watering plants as well as for typical pressure washer applications like cleaning garden tools and outdoor furniture. As part of the Karcher 18V Battery Power cordless system, this pressure washer shares battery compatibility with other tools in the range. Additionally, spare batteries are also available if you want to increase the amount of runtime you can get in a single session. Features and Benefits • Battery powered medium pressure washer for cleaning and watering • Part of the Karcher 18V Battery Power cordless system • Shares battery compatibility with other tools in the range • Included suction hose means the pressure washer can be used with unpressurised water sources • Integrated water filter protects the internal components from waterborne contaminants • Versatile 5 in 1 Multi Jet nozzle can be easily adapted to various applications Specifications • Battery Voltage: 18v • Battery Type: Karcher Battery Power (Lithium Ion) • Max Pressure: 21 Bar • Pressure Range: Medium Pressure • Max Water Feed Temperature: 40°C • Max Flow Rate: 170 l/h • Typical Runtime with 2.5ah Battery: 14 mins Contents • KHB 4-18 Cordless Pressure Washer • 5 in 1 Multi Jet Nozzle • Lance • Garden Hose Adaptor (3/4") • Suction Hose • Karcher 18v Battery Power Lithium Ion Battery 2.5ah • Battery Charger (240v UK Mains)

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