A simple no nonsense screw top tube with a liquid proof seal. Approx 58mm long they can be hidden almost anywhere and if the need arose you could 'deep carry' it to retrieve it later. Alternatively, could also be 'stashed' externally easily, in a variety of other locations.
Pearl walls allow you to improvise a light with a diffused glow by using our Nato Light Sticks.
A perfect addition for storing water sterilisation tablets in a survival kit for example, possibly one of the few things that has a hundred uses and the more you use it, the more you will find.
MK II Tube is 50% larger than the regular stash tube by volume