I'd be curious about that, too, thanks.
I'm using the set I just ordered for deco, however. Trying to figure out the o2 clean thing. Can I use these brand new regs on my 100% bottle (Al.40, so 3000psi max, sometimes lower) or should I just reserve them for my 50% bottle?
Per Chris at the instructor course, no amount of O2 cleaning will increase these limits:
- OK for 100% O2 up to 2400 psi.
- OK for EAN80 up to 3400 psi.