ahereng
Contributor
Yes. For all practical purposes they are O2-clean when new.
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Yes. Unless you have an older service kit, all the Apeks service kits (and newly shipped regulators) use O2 compatible components. I think Apeks only states that their Green XTX/DS4 DIN can be used with 40 to 100%, but there is no difference between that regulator and a standard XTX/DS4 other than green color parts.Sorry for opening up an old thread. Are you guys using regular Apeks first stages for O2?