Go to TigDepot.com and buy an regulator with 2 flowmeters--then you just need a piece of airhose with a standard quick disconnect to hook to a air hose barb screwed inti a plumbing plug( expandable tapered plug)--hit the tig a time or two to blow out the inside and start welding--it will feed argon in every time you trigger torch and also during the after purge--if you need some pics , I'll take a few---