LifeStraw Flex with Gravity Bag Water Filter - 1 gal.

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Let gravity do the work with the Lifestraw Flex with Gravity Bag water filter. Hung from a tree or stashed in your pack, it provides easy access to clean water so you can focus on your adventure.

  • Features

    • 2-stage filter removes 99.999999% of bacteria and 99.999% of parasites and microplastics to help you avoid waterborne illness
    • Can be used in 4 ways (as a personal straw; with included 1 gal. gravity bag; attached to a plastic water bottle; or with a hydration bladder) for on-the-go versatility
    • Filter has lifetime of 2,000 liters of use; carbon capsule lasts up to 100 liters
    • Reduces organic chemical matter (pesticides, herbicides and VOCs); exceeds US EPA drinking water standards for bacteria and parasites
    • Exceeds NSF 53 standard for reduction of lead and other heavy metals and NSF 42 standard for chlorine reduction


    View all LifeStraw Gravity Water Filters
  • Technical Specs

    Best Use


    Filter Type


    Filter Medium

    Hollow-fiber membrane/activated carbon


    Protozoa And Bacteria


    500 ml/min – 30 L/hr.

    Housing Material


    BPA Free


    Field Cleanable



    11 x 5.4 x 2.6 inches


    5.7 ounces

  • Reviews
    184 reviews with an average rating of 4.1 out of 5 stars

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