KATADYN Steripen Adventurer Opti UV Water Purifier Backpacking Camping Travel
£63.10
Ultraviolet (UV-C) light rays sterilize clear water by eliminating 99.9% protozoa (including Giardia and cryptosporidia), bacteria and even viruses. I bought this a while back for a trip I was taking to India, not knowing what I might encounter.
