Guardian Water Purifier

WORLD'S MOST ADVANCED PORTABLE PURIFIERThe MSR Guardian purifier combines military grade engineering and game changing hollow fiber technology to create the safest, easiest way to purify water virtually anywhere on earth. Co developed with the military, it brings this advanced technology to international travelers, backcountry users and for disaster preparedness. Game changing hollow fiber media offers the most reliable way to remove pathogens even viruses from the filthiest water. Add self cleaning performance, and this purifier shifts the paradigm.