STIHL RCA20 Cordless Pressure Washer

Product Details & Features

• Operating pressure - 22 bar / 320 psi
• Max flow rate - 230 l/hr
• Hose length 5m
• Aluminium pump head

Please note this is a tool only product and batteries and charger are sold separately

Included in the tool only version of the RCA20 Cordless Pressure Washer

• 4-In-1 Nozzle
• Spray lance extension
• Suction hose with filter
• Water container bag
• Detergent spray set

The STIHL RCA 20 Cordless Pressure Washer is a compact, battery-powered handheld pressure washer designed for versatile cleaning tasks around the garden, home, campsite or on the go. Powered by STIHL’s lightweight AS battery system, this portable washer gives you the freedom to clean without mains power or direct water connections — ideal for washing bikes, garden furniture, patios, vehicles and more.

Key Features:

Battery-Powered Convenience – Runs on a compatible STIHL AS system battery (e.g., AS 2 — sold separately) so you can clean anywhere there’s no mains available. 

Compact & Lightweight – Weighing around 1.3–1.5 kg, the RCA 20 is easy to carry, handle and store — perfect for quick jobs. 

4-in-1 Multi Nozzle – Quickly switch between fan jet, rotary, narrow jet and watering spray modes for adaptable cleaning performance.

Flexible Water Supply – Connect to a garden hose or use the included suction hose and 20 L water container bag to draw water from buckets or barrels (no fixed water connection required). 

ECO Mode – Optional lower power setting helps extend battery runtime for lighter cleaning tasks. 

Quick Setup & Accessories – Includes spray lance extension, suction hose with filter, detergent spray set and carry bag for organised transport and storage (kit versions typically include batteries and charger).

Ideal For:

• Cleaning bikes, garden furniture and outdoor equipment

• Washing patios, driveways and small hard surfaces

• Rinsing car tyres and wheels

• Camp, caravan or off-grid cleaning tasks

• Quick, portable cleanup jobs without mains power

Product Details:

Product Type: Cordless Pressure Washer
Model: STIHL RCA 20
Power Source: Battery (compatible STIHL AS system — battery sold separately)
Max Pressure: Up to ~24 bar (approx. 350 psi) 
Operating Pressure: ~22 bar 
Water Flow Rate: ~140–230 L/h 
Hose Length: 5 m suction hose included 
Weight: ~1.3–1.5 kg 
Application: Portable outdoor cleaning and surface washing

Why Choose This Pressure Washer:

The STIHL RCA 20 Cordless Pressure Washer is perfect for users who want a highly portable, easy-to-use cleaning tool that doesn’t rely on mains power or fixed water sources. Its lightweight design, flexible water supply options and interchangeable spray settings make it suitable for a variety of light to medium cleaning tasks around the home and outdoors. With optional ECO mode to extend battery life and a thoughtful accessory set, it’s a handy cordless solution for everyday cleaning needs. 

The STIHL RCA20 is a cordless powered pressure washer designed for the smaller cleaning jobs and professional applications. Part of STIHL's AS battery system the RCA20 is powered with an interchangeable battery that can be used in any other machine in the AS system range to cover all types of gardening tasks. 

With cordless freedom through the AS battery system the RCA20 gives you portability like never before allowing you to pressure wash on the move as well as at home. This also extends to being away from a water connection, allowing you to attach a 5 metre suction hose to the pressure washer and simply place the end in the 20 litre water container provided or by using a nearby water source. The integrated water filter protects the power tool from dirt passing through from the water source. 

The RCA20 has an operating pressure of 22 bar and a maximum water flow rate of 230 litres per hour. Pressure can be adjusted with the variable control switch to suit the cleaning job at hand.

The RCA20 comes fitted with a 4-in-1 multi nozzle which can be quickly changed between different modes:

• Fan jet nozzle The standard nozzle for cleaning normal dirt on various surfaces
• Rotary nozzle* For removing stubborn dirt from robust surfaces
• Narrow jet nozzle Sprays water in a thin, focused line
• Watering mode Pours water at a very low pressure, ideal for rinsing dirt

The RCA20 also comes with a spray lance extension, detergent spray set, plus a 5 metre suction hose with filter and a 20 litre water container bag. These accessories can all be stored in the carry bag which comes with the pressure washer as standard.

Battery Information:

• AS2- up to 15 minutes at low power and up to 8 minutes at high power

Batteries and charger are sold separately.