Karcher's range of pressure washers includes 12 models — eight gasoline-powered and four diesel-powered — with cleaning power ranging from 3.9 to 5.6 gpm at pressures from 3,000 to 3,500 psi. The model HDS 4.8/30 (pictured) is a 16-hp, hot-water unit available with a either a 12-volt or 120-volt burner and delivering 4.8 gpm at 3,000 psi. The engine and belt-driven pumping system are isolated on a shock-mounted sub-frame, and the pump features a tri-plunger configuration.