Professional Gas Professional gas pressure washers vary from cold water, hot water, and belt-driven washers. They're great for cleaning agricultural equipment, large homes and virtually any type of cleaning task.
If you're a cleaning professional and need a reliably powerful unit, these will be perfect for you. They're built to handle heavy use so you don't have to worry about frying the pump or engine.
Professional Vehicle/Trailer Mounted Professional vehicle mounted pressure washers are the biggest, baddest washers on the market. You can either mount them in the bed of a pickup or get a trailer mounted unit, allowing you to clean anything you can drive near.
These are only meant for serious professionals and the price tags attest to this. But if you're cleaning commercial buildings or other large structures, they can turn a day's job into "done before lunch."