STIHL Pressure Washers RB 400 DIRT BOSS® Powerful, high-performance, and easy to use. Designed with high-quality, durable components for tough cleaning jobs. When you need a power washer that delivers top performance and can stand up to daily use, choose the STIHL RB 400 DIRT BOSS® pressure washer. It features a powerful 196 cc (6.5 hp) engine tha...