Grayl Geopress Replacement 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(R) One-Way Valve ships pre-installed in every GeoPress Bottle. Replacement purifier cartridges for the GeoPress are designed to last 350 cycles (65 gal. / 250L). Lifespan will decline when purifying water with high levels of silt, sediment or tannins. Cartridge press time increases towards the end of the cartridge lifespan- when press time reaches 25-30 seconds, the cartridge should be replaced. Cartridge continues to protect, even as press time increases.