Jimchris
Support your local dive center
Central welding will fill/exchange medical bottles. Hydro cycle does still apply. If you want USP, they need a prescription on file, otherwise they can fill them with ABO no questions asked. I go direct to the fill plant in Marysville.I picked up a couple "E" sized O2 cylinders yesterday off Craigslist and I am wondering where I might be able to get them filled. Will welding supply places fill medical cylinders? Do they balk if they have labels from a previous owner? Does the same 5 year cycle apply to hydro testing and does anyone check? What has your experience been?