Replace the cartridge on your MSR Guardian Gravity Purifier, or just have one on hand as a back up.
- Removes viruses, bacteria, and protozoa; pore size 0.02 microns
- Hollow fiber filter removing bacteria and protozoa
- Activated carbon filter helps remove any tastes from the water
- Filter flow rate of up to 500ml per minute
- Note: the quality of water will significantly affect the filter's 3000 liter life
