Grayl UltraPress Water Filter and Purifier Bottle - 16.9 fl. oz.

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With a quick press, the compact and adventure-ready Grayl UltraPress Water Filter and Purifier Bottle helps protect against viruses, protozoa, bacteria, chemicals, pesticides and heavy metals.

  • Features

    • Compact and easy to use, this 16.9 fl. oz. (0.5-liter) bottle fits into a pack pocket or cup holder, requires zero setup and purifies water in just 10 seconds (3 L/min)
    • Simply fill, press and drink—fill from any freshwater source, press on the ground or other firm surface, and drink purified water
    • OnePress™ global protection is effective for use on all 7 continents
    • Device uses ion exchange and ultra-powdered activated carbon to filter and purify water
    • Removes viruses (e.g., hepatitis A, norovirus, rotavirus), bacteria (e.g., E. coli, salmonella, shigella) and protozoan cysts (e.g., amoebae, cryptosporidium, giardia)
    • Adsorbs many chemicals, pesticides, herbicides, heavy metals, volatile organic compounds (VOCs), flavors and odors
    • Filters particulates such as sediment and microplastics
    • Multifunctional SimpleVent™ drink cap vents air (by twisting cap a half-turn) during purification and filtration and protects spout from cross-contamination
    • RiverFlow™ spout delivers a fast flow of clean drinking water for chugging or filling hydration reservoirs and other bottles
    • FlipCarry™ handle provides an enlarged pressing surface when flat; it also rotates 90° for effortless separation and easy carrying
    • SoftPress™ ergonomic comfort pad on cap offers a nonslip, anti-fatiguing pressing surface
    • TPE TopoGrip™ is placed on all heavy-use surfaces for tactile, nonslip performance
    • This durable, BPA-free bottle disassembles for easy cleaning
    • Replaceable purifier cartridge is rated for 300 cycles (40 gal./150 L); when press time reaches 25 sec. (or 3 years have elapsed since first use), it's time to replace it
    • Independently tested by a certified laboratory to meet or exceed NSF/ANSI protocols 42 and 53 for sediment, pathogen and chemical removal
    • Also meets the EPA Guide Standard and Protocol for testing microbiological water purifiers


    View all Grayl Water Bottle Purifiers
  • Technical Specs

    Best Use



    Filter Type



    Filter Medium

    Electroadsorption/ultra-powdered activated carbon


    Protozoa, Bacteria and Viruses

    Pump Strokes Per Liter



    10 secs. per 16.9 fl. oz.

    Housing Material


    BPA Free



    9.75 x 2.95 inches


    12.5 ounces

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