Grayl GeoPress® Purifier Cartridge

Boost your GeoPress! GeoPress cartridges were redesigned in April 2023 with a new "core" and "flow channels" to accommodate a One-Way Valve for use with electrolytes, drink mixes and or other flavored liquids. 

Note: the GeoPress® One-Way Valve ships pre-installed in every GeoPress Bottle.