It seems to be, but there have been several minor versions of the "Stardust" that their batch is probably a little outdated.
ok - Thanks! I just got a new one last week (one last try of these things). It has a longer wick. From what I've been reading here and looking at the Clearo under a magnified (hobby) light - it looks like the tip (that get unscrewed to fill) doesn't always go back on that inner part correctly. That appears to be where MY leaks are coming from.
I snipped one of the condoms/covers to fit inside - it stopped one that had been leaking. Able to refill with it in place. Just wiggled it up a bit BEFORE replacing tip. Also took the inner silicone ring from under the hard cap (Mystic brand) and slipped in - it worked great - maybe a little thick - unsure of pressure in screwing cap back down. A bit harder to get thicker juice to slide down. So far - so good. I am aware that too much pressure from screwing vapor tip down is not good. One of the new Clearo's separated from the main tank the first time I opened to refill it. That part worries me so not sure if using the Mystic ring is such a good idea.