7L water cooler for welding machine is with 370W S/S pump and has good cooling system. Suitable for Tig,Mig,Plasma welding Product functionOld ... steel pipe, a large area of high-density cooling fins designSuper coolingcooling fanStandred fanRotating fanSmaller fanNo dustIntelligent Alarm ... the wall.We also have a big capacity water cooler for welding machine model, such as MD-1121, which 17 liter. ...