MSR Guardian Water Purifier Replacement Filter Cartridge - Portable Water Treatment System for Camping, Hiking & Emergency Preparedness

The MSR Guardian Military-Grade Water Purifier Filter Cartridge Replacement restores the MSR Guardian Purifier’s flow rate to 2.5 liters per minute (assuming there aren't any other factors inhibiting flow), and lasts up to 10,000+ liters. Removes viruses, bacteria, protozoa, and particulates, like dirt and sediment. Manufacturer’s limited 3-year warranty. Made In USA.