Restore the life and effectiveness of your Grayl UltraPress Purifier Bottle (sold separately) with the compatible UltraPress Purifier Cartridge. The cartridge filters out particulates, improves flavor, reduces odor, and is highly effective against viruses, bacteria, and cysts. The ...Restore the life and effectiveness of your Grayl UltraPress Purifier Bottle (sold separately) with the compatible UltraPress Purifier Cartridge.
The cartridge filters out particulates, improves flavor, reduces odor, and is highly effective against viruses, bacteria, and cysts. The Grayl UltraPress Purifier Cartridge is effective for up to 300 uses (40 gallons). Unused, it has a shelf life of up to 10 years and, after initial use, it remains effective for up to 3 years.