Drinking straight from crystalline mountain streams is nice in principle, but a lot less awesome when we end up running for the bushes every five minutes for the rest of the trip. There are plenty of ways to prevent waterborne bummers, but none that we find as effective, easy to use, and reliable as the MSR Guardian Purifier System.
If you're looking for our best deals, visit our Backcountry Outlet Shop, where everything is at least 30% OFF the regular retail prices!