Hotsy's Gas Engine Series of hot water pressure washers offers a variety of mobility options. Their belt-drive pressure washer models can be ordered in a number of different configurations to fit individual needs. The standard pressure washer model is equipped with a trailer-mount chassis and can be converted to a portable unit with two wheels and two casters for easy maneuvering on concrete or flat surfaces. The four-wheel pressure washer kit is also offered with pneumatic tires, allowing for portability on gravel surfaces. The chassis is available in a skid unit, allowing easy mobility with a forklift.