Flat Cap - 63mm

I was worried it might not seal well, but this cap threads on smoothly and creates a tight, leak-proof closure. Works exactly as needed for my hydration setup.

Lost the original cap to my Stash 1L somewhere on a hike and figured I'd have to retire the bottle. This replacement screwed on with a solid seal on the first try, no leaks rolling around in my pack. Cheap fix for a bottle I wasn't ready to give up.

Wasn't sure a $6 cap would feel this solid, but the 63mm threading screws on tight with zero leaks. Now my old 1L bottle is back in my hiking pack instead of the trash.