The SK Series is a truly portable machine, can be trailer /truck mounted and is a real asset when electricity is not available. The industrial rated 16 HP Vanguard twin-cylinder electric-start engine provides power to the pump and 12 VCD burner. Big 20 amp charging circuit. The stainless steel wrapped 1/2″ SCH 80 coil heats the water up to 225F. You will experience extended run times with the large 7.5 gallon gas and diesel tanks. An industrial rated belt-drive pump turns at lower RPM resulting in a cooler running and longer lasting pump compared to one that is direct drive. The machine is complete with gun/wand, 50′ high pressure hose, quick connect nozzles, high limit switch, pressure relief valve, burst disc and flow sensitive unloader. Requires group U1 235 CCA battery, not included.