Now I don't know about price, but, any welding supply place or industrial gas "place" will do it, and I think its way cheap, I live in Easton PA, on the Jersey border, and we have AirGas, a local company, I know this because I'm not to far away and they fill our gas bottles at work, also we have Wilson Gas, a company even closer to my house. Now talking to the guy that fills up our gas at work says " sure bring it to work we will do it for nothing, however I will still need company approval, this is great but I don't keg, but my mate that does keg refered me to any welding supply house, as mentioned above and I will save, in his words " hundreds.