cylinder sizes - Miller Welding Discussion Forums
Nov 01, 2008·Some welding stores won't sell you a cylinder larger than 80 cu ft size but most will sell up to 125 cu ft size. The two sizes are the same diameter, 125cu ft. is just taller. For use renting a cylinder may cost you quite a bit more over the long run. A full 80 cu ft. cylinder will probably be about $210 to $230 to buy.