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Size: One Size
LifeStraw Flex with Gravity Bag is a powerful 2-stage water filter that provides safe drinking water in any environment. It can be used in 4 ways: with the included one-gallon gravity bag, as a personal straw, attached to a plastic water bottle or with a hydration bladder.
Hollow fiber membrane removes 99.999999% of bacteria, parasites, and microplastics
Activated carbon capsule reduces lead and other heavy metals, chlorine, and organic chemical matter
Membrane microfilter pore size: 0.2 microns
Membrane filter lasts up to 500 gal/2000 L.
Exceeds NSF 53 standard for reduction of lead and other heavy metals