well i do have a local place that i can check with once i get home, it's just the matter of me being several thousand miles away right now. if they can get it to me cheaper then i'll use them instead. as far as 304/316 i understand what you are saying, but right now this device is a temp anyways, i have another design in the works that will finally be able to use a PEM(solid electrolyte). that one i'll do in 316 as long as i can get all the parts that i wanted. besides i was also thinking of doing nickel plating on it too in hopes that i would be able to slow that process if not halt it permanently
thanks