About used commercial dishwashers & cleaning equipment

Used warewashing and cleaning equipment: undercounter and door-type dishwashers, glass washers, booster heaters, floor scrubbers and other cleaning machines. Confirm whether a dishwasher sanitizes with high temperature or chemicals, what electrical and water connections it needs, and whether a booster heater is included. Pumps and heating elements are the costly parts, so ask about recent service history.