rainshoe, chucktx. is leading you in the right direction..You will need a regulator just as he says, but I didn't know there was anything very special about it other than the price, because regulators tend to be a bit pricey.. I think I got mine at a welder supply house, & it works great..They could help you get hooked up..Chuck's right again--you'll need an adapter to attatch the airbrush hose to the regulator..I love working with Co2 bottles, but I don't do it that often anymore.. They are silent, & you need NO moisture trap..Very neat, clean & quiet--the only drawback being that they cost $15-$20 maybe even $25 now to fill, & for a woman they can get pretty heavy.. They seem to last a nice amount of time--this varies with the amount of work you're doing--but I know it makes practice or play around time very expensive..I always keep one around though just in case I would need to go off site..Great question!!
