Kärcher, the world’s largest manufacturer of pressure washers, has introduced a commercial line of cold-water pressure washers using a hand-truck design for easy maneuvering.The four models deliver cleaning power of up to 3,600 PSI (pounds per square inch) of pressure with a flow rate of up to 4 GPM (gallons per minute). All come with Kärcher’s patented, professional-grade axial pump integrated with a Honda engine.The line of hand-truck pressure washers feature a rugged steel frame, tubed-pneumatic tires and 50 feet of commercial-grade high-pressure hose. Two models, with 9 and 13 HP engines, come standard with an easy-wind hose reel.Kärcher’s ergonomically designed equipment allows for hours of fatigue-free cleaning and, thanks to a unique pulsation dampener system, the elimination of the hammering effect associated with traditional power cleaning equipment. Each model comes with a stainless steel wand and Karcher’s prized, light-to-the-touch trigger gun.