3 ms·
The o-ring is pretty flimsy (you can see it in a few pictures), but some have done this mod and have worn their F-91Ws without any leakage for 5+ years, so I ex
by dvt 7y ago
The o-ring is pretty flimsy (you can see it in a few pictures), but some have done this mod and have worn their F-91Ws without any leakage for 5+ years, so I expect it to be "good enough."
- sq_ 7y agoGood to know. Thanks for the info and for writing the original post about this!