I am looking for a filter that does all three. The only one I can find is the MSR Sweetwater. Are there any others. Any that are not 100% chemical? I know the katadyn pocket is Awesome but it does not do viruses.
Thanks.
The Steri-Pen, Katadyn Hiker Pro, Sweetwater Purifier are a few. I believe the Steripen will probably be your best bet. I have not used one but I have heard good things about them. All purifiers have their pros and cons...
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