Excellent suggestions, cats5365 and bnrkwest. World of
vape was about the cheapest I'd found. And, though ProVape isn't bashful about their price ($31.99!), a bunch of them would have driven me over the top, points-wise.
But:
BINGO!
Hopefully, these will fit and not leak:
(2) Atlantis + Nautilus Replacement Seal Gasket Anti Leak ORing Aspire TWO Pack
At nine bucks for two of them, if they work they'll put my last vapemageddon fears to rest. (I have enough of everything else to last more than the rest of my life.)
All I really want are those proprietary replacement grommets. All the other pieces of
nautilus Aspires are stainless steel and look like they should last about forever. I've always been leery about those grommets, though.