The heavy-duty, 12-volt electric clutch series of pressure washers from Water Cannon Inc. - MWBE are designed to mount on front of a diesel engine for high-pressure washing on location. It is available in three different pressures from 2,000 to 4,000 psi and flow rates from 4 to 8 gpm. Other features include a continuous-duty hydraulic coupling drive system, an in-line serviceable stainless steel mesh water filter, stainless steel unitized valves, forged brass manifold and a heavy-duty triplex plunger pump. The thermo-pump protector engages at 140 degrees F, and the adjustable pressure regulator is from 150 psi to the max pressure. 800-333-9274; www.watercannon.com.