
STIHL designed its RB 400 Dirt Boss pressure washer to deliver:
- An output of 2,700 PSI of water pressure at 2.7 GPM with a 196 cc (6.5-HP) engine.
 - An easy-start pump system that eliminates hard pulls and difficult starts.
 - A detergent injector system to easily add detergents to the washer for efficient cleaning.
 - 10-inch pneumatic tires with a rugged steel hub designed for frequent use, optimal mobility and portability.
 - 25 feet of flexible no-kink hose to minimize the need to relocate while working.
 - A comfortable spray gun with a rubberized reverse pull trigger designed to reduce user fatigue.
 - A combined on/off and fuel valve control for easy, no-mess transport.
 - A four-point vibration isolation system to increase unit longevity.
 - Stainless steel high-pressure nozzles and brass detergent nozzle to resist corrosion and wear.
 - A convenient two-piece lance and gun assembly.
 - Suitability for heavy cleaning jobs on the deck, the house or even lawn equipment.
 - Compatibility with a wide range of optional accessories for maximum utility.
 
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