The Karcher SGP-403537E portable gas-powered hot water pressure washer is built using heavy-duty components and a rugged steel chassis to withstand the most rigorous conditions, and it delivers cleaning power of up to 3.5 GPM at 3500 PSI. Their compact frame design and tubed pneumatic wheels provide easy maneuvering over all types of terrain. Each unit comes with a leak free Schedule 80 heating coil surrounded by a standard stainless steel wrap. ETL certified to UL and CSA safety standards.