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.Removes waterborne pathogens (viruses, bacteria, protozoan cysts), including Rotavirus, Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery and moreFilters: particulates (sediment, microplastics) and many chemicals, pesticides, and heavy metalsImproves taste, smell and clarityActive Technology: Electroadsorption and ultra-powdered activated carbon.Chemical-free: YesSize: 2.9" (7.3 cm) H x 3.1" (7.8 cm) WWeight: 3.8 oz (108 g)Removes: waterborne pathogens (99.99% of viruses, 99.9999% of bacteria, 99.9% of protozoan cysts), including Rotavirus, Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery and moreFilters: particulates (i.e. silt, microplastics, etc.); activated carbon effectively adsorbs chemicals, pesticides, heavy metals, flavors, and odorsFast Flow Rate: 8 seconds per 24oz (5 liters/minute)Cartridge lifespan: rated for 350 cycles (65 gal. / 250L), as "press time" reaches ~25 seconds (or three years have elapsed since first use) it's time to replace your purifier cartridgeCartridge shelf life: stored under proper conditions, an unused (and airtight) purifier cartridge has a shelf life of 10 yearsBPA-Free materials: made from ABS food-grade plastic and food-grade siliconeTesting standards: independently tested by a certified laboratory to meet or exceed NSF/ANSI protocol 42 and 53 for pathogen and chemical removal; meets the the United States Environmental Protection Agency's Guide Standard and Protocol for testing microbiological water purifiersOrigin: Designed in United States; purifier cartridge media made in United States; cartridge made in China
