This really depends on your surroundings, I have no such place by me. I have actual gas distributors that are grossly over priced, paintball locations that want $5 per pound, or fire extinguisher companies which have the best refill rate. They will refill as long as my hydro test is up to date.Better to just get a tank from the local welding supply house. They will give you a 20lb tank for 25 bucks full of Co2. Many companies will not refill tanks they do not own.



