hawkwrench Posted October 16, 2018 Share Posted October 16, 2018 (edited) I have 2 questions: 1) I just bought a CO2 tank and regulator. Attached to the regulator by a zip tie was a small plastic red disc. It's not an O ring. What the heck is it? 2) What size fitting adapter do I need to attach my badger airbrush hose to the male end of the regulator? Here's a close up shot Thanks in advance! Tim Edited October 16, 2018 by hawkwrench Quote Link to post Share on other sites
Gerhard Posted October 16, 2018 Share Posted October 16, 2018 Tim, that red disc looks like a dust plug, for when you remove the connector valve from the regulator. We have similar on some of our scuba tanks. when they go into storage. Of course, I might be making a total idiot of myself. Quote Link to post Share on other sites
Scott Smith Posted October 26, 2018 Share Posted October 26, 2018 Might be a spare O ring seal. If it is, not your typical O ring. Quote Link to post Share on other sites
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