Its a Hobart Handler 180. I havent welded any thing with it yet but my dad has and he said it works great. But we have a problem. As soon as you turn on the gas it is purging it out of the gun constantly. It should wait until you pull the trigger, then go but it just goes all the time, whether your feeding wire or not. I checked my manual. There was nothin in the troubleshooting section about it.