They are iodine tablets specifically for water. They kill anything in the water before you drink it. I have used them a lot. Look up cohglans or Potable Aqua. Both make the 2 part kit.Iodine??? Ever have to use b4? Curious?? Ok one weird thing I carry is a saw blade like the guy in Utah I think who got stuck under a rock had to saw off his arm so thought about it & bought a mini blade looks like a rope just in case. Never know when trekking what the terrain could look like.
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