The replacement purifier cartridges for the GEOPRESS are designed to last 350 cycles ( 250L ).
The lifespan will decrease when purifying water with high levels of silt, sediment, or tannins.
The pressing time of the cartridges increases toward the end of the cartridge's lifespan; when the press time reaches 25-30 seconds, the cartridge should be replaced.
The cartridge continues to protect, even as the press time increases.
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