Portable Pen For All Environments: The Inka Pen

The Inka Pen attaches to a keyring and has a lightweight, stainless steel design. Using a pressurized ink cartridge, it writes at any angle, temperature, altitude and even underwater. The pen is made in the U.S. and has a lifetime warranty. Available from Amazon for $11.

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Very Efficient: Pocket Filter by Katadyn

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This is a serious portable water filter from Katadyn. It’s efficient because it uses a ceramic filter, which will not let anything larger than 0.2 microns through. It also has a long life — it will filter up to 13,000 gallons before you need to replace the cartridge. The filter eliminates bacteria, viruses, cysts, protozoa, […]

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