Considering that when you visit the
Infinite website and look at RDAs... on the rare occasion they do mention the type of SS, it's always 303, not 304. They do mention 18-8 stainless for screws (which is 304)... but that's the screws.
I looked at 7 different RDAs on their site... and no mention of 304 SS. (their search engine blows... so you have to look manually)
I find this interesting, because
some US vendors say "304 Surgical Grade" stainless steel for the Magma. Are they making this up to satisfy US buyers - I wonder?
If I was a betting man, I'd wager that all Infinite (SS) RDAs are made from 303 SS. I'll let you look up the differences at your leisure... rather than me cut & pasting. ;-)
Addendum:
VaporDNA indicates the Infinite CLT to be made of 304 SS... who's fibbing, Infinite, or
vapordna?