Steel Dragon Tools Portable HVAC AC Coil Cleaning System 500 PSIThe Steel Dragon Tools® Portable HVAC AC Coil Cleaning System is a compact, coil jet-cleaner ideal for use on commercial evaporator units, rooftop AC units, thick refrigeration coils, and micro-channel coils. Package includes hose, wand, spray gun, and filter intake. Includes hose, wand, spray gun, and filter intake. Portable design makes it easy to clean HVAC coils in hard to reach areas. Efficiently clean coil debris from both sides of condenser and evaporator coils. Water hose connection for continuous cleaning. Offers high-flow cleaning. Working Pressure: 0-500 PSI Maximum Water Temperature: 120° F (50° C) Flow Volume: 3/4 GPM Motor: 1,440 RPM, 110 V, 60 Hz, 3 Amps, 250 Watt. Metallic frame and cover Uses Air Conditioner Cleaner Car Engine Compartment Cleaner Washing and Finishing Plasterers work Kitchen and Food Processing Equipment Cleaner Farm Tool and Machine Cleaning Printing Machine Cleaning Steel Pipe Cleaning Recommendations Use an empty vessel as a water tank for the overflow hose and suction hose with filter attachment. Maintain clean water. Use gaskets to keep a good seal on the high-pressure hose and the suction hose. Slightly loosen the adjustment screw before operating to eliminate too much pressure build up from the start.