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The lightweight, long-lasting LifeStraw Flex water filter with collapsible squeeze bottle provides added versatility and protection. The membrane microfilter protects against bacteria, parasites and microplastics. The activated carbon + ion exchange filter protects against lead, heavy metals, chlorine and other chemicals while improving taste. The LifeStraw Flex water filter can be used to drink directly from a water source, with the included squeeze bottle, and attached to a hydration pack, gravity bag or disposable water bottle. Portable and compact, this is ideal for hiking, camping, travel and survival. Your purchase has impact. For every LifeStraw product purchased, a school child in need receives safe water for an entire school year.Protects against 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), 99.999% of microplastics, heavy metals, like lead, chlorine, organic chemical matter, silt, sand, and cloudiness; improves tasteVersatile water filter system, can be used 5 ways: as a personal straw filter, with the included squeeze bottle, with a gravity bag, as an in-line filter with most hydration packs or attached to most disposable water bottlesCompact and ultralight filter and 22oz squeeze bottle weighs 3.15 oz and has an easy-to-fill wide openingLong-lasting membrane microfilter lasts up to 500 gallons; replaceable activated carbon + ion exchange filter lasts up to 26 gallonsWeight0.2 lbMaterialTPU Laminated NylonActivityHikingHeight10.6
