Professional Gas/No-Gas MIG Welder 150Amp 230V One of our professional MIGHTYMIG range this compact gas/no-gas welder offers excellent performance at an extremely competitive price. This unit is set up ready to go in gasless mode but can also be switched easily to use with gas by a simple change of polarity and purchase of a Gas Conversion Kit – Model No. 120.802032. Supplied with comfort grip non-live torch, 1.8mtr earth cable, 1mtr gas hose, 0.45kg flux cored wire and 0.9mm contact tip.