The medium quadro series offer maximum performance and are a bit too powerful for running on a standard single phase power supply [230 volt] with a normal UK 3-pin 13 amp plug so they arrive with a 16 amp round pin plug. The sturdy four wheeled design makes these easy to manouver and the locking brake ensures the high-pressure cleaner stays in place. The 10 litre integrated water tank helps to offer protection against temporary shortages/fluctuations in the water supply (say, perhaps due to a toilet on the same water supply being flushed, or a tap turned on). Engineered and built to withstand daily, all day use; the medium quadro series demonstrate versatility and suitability for even the most demanding hygienic environments - when performance matters, Kränzle delivers.