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

Color: Forest Blue

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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.

Location Image of color Forest BlueLocation Image of color Forest BlueLocation Image of color Forest Blue
Location Image of color Forest Blue


  • 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, cryptosporidia, 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; hand wash all parts except filter with warm, soapy water
  • 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

321 reviews with an average rating of 4.7 out of 5 stars

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