Liberty Series oil-fired skids are the workhorses of the pressure washer industry. Delivering up to 5.6 GPM of hot water at up to 3500 PSI, these skid-mounted gas- and diesel-powered machines are built on an open fram using heavy-gauge 11/4" powder coated steel and can be mounted to a truck or trailer. The engine and powerful belt-drive pumping unit are isolated from the rest of the machine on a shockmounted sub-frame to reduce vibration. Each unit is ETL certified and comes with a Karcher tri-plunger pump, Karcher gun and wand, a Schedule 80 heating coil and standard stainless steel wrap.