For top performance and daily use, choose the STIHL RB 400 DIRT BOSS®. Its 196 cc (6.5 hp) engine delivers 2,700 psi of water pressure at 2.7 gallons per minute. It also offers the durability STIHL products are known for, with a brass manifold pump design, stainless steel valves, and ceramic-coated pistons. There is also a cast-iron engine liner and a built-in shutdown feature when the oil level is low. The STIHL RB 400 DIRT BOSS® also features an easy start pump system and a convenient detergent injector system. And with its 7.5m no-kink flex hose, you can clean more areas without moving the machine. The pressure cleaner supports a wide range of optional accessories. These include a rotary surface cleaner, water broom, nozzle options, hose extensions, gutter cleaner, aluminum wand extension, pivot coupler, and official STIHL cleaning agents. When you need to demolish dirt daily, the DIRT BOSS® handles the pressure with ease. Need a reliable water pump? The STIHL RB 600 offers exceptional power and durability for demanding tasks like irrigation and drainage.