MSR Guardian Replacement Cartridge Freeze Dried Food Water Treatment (Chlorine Dioxide) kills

Water Treatment (Chlorine Dioxide) kills bacteria while enhancing the taste of treated water

USB Charging Line

Lifetime: 3

Ideal for long-distance treks

which make them compatible with most water filters

MSR Guardian Replacement Cartridge Freeze Dried Food Water Treatment (Chlorine Dioxide) kills*This product can only be shipped within Canada Replace the purifier cartridge on your MSR Guardian Filter, or just carry one as a back up. Removes viruses, bacteria, and protozoa. Comes with clean side cover. Hollow fiber filter removing bacteria and protozoa. Note: the quality of water will significantly affect the filter's 10000 liter life.