Tag Archives: hollow fiber water filters

Most hiking and backpacking water filters must be replaced if they’ve been frozen.  When it gets too cold to keep a water filter from freezing, your best bet is to switch to chemical purification using chlorine dioxide in tablet form (Katadyn chlorine …

The Katadyn BeFree Water Filter is a hollow-fiber water filter, like the filter included in the Sawyer Squeeze and Sawyer Mini Water Filter Systems, but with a MUCH FASTER flow rate. How fast? I can filter a liter of water in 30 seconds …