The Power Cool W300 (240V) water cooler from Everlast is designed to work with Everlast TIG welders to provide the maximum cooling capacity and includes a special 240V plug for the socket on the Everlast welder rear panel. This plug may be removed or changed for applications with other brands of welders. The unit features color coded quick connectors for rapid and correct connection of the torch lines. The radiator is made from copper for maximum cooling capability. The Italian made pump is made from stainless steel with a bronze impeller for maximum wearability. The Italian industrial motor is sealed for best protection from the elements. The standard unit is 240V. 120V is available for other units with 120V requirements. A generous reservoir holds just a little over 2 gallons of coolant for maximum circulation capacity. Use only distilled water or antifreeze specifically designed for use with TIG/MIG torch coolers. Do not use automotive anti freeze!