Compact, discrete, and ridiculously easy to use — the UltraPress® Covert Edition fits into any pack pocket (or cup holder), requires zero setup, and makes 16.9 ounces of clean purifier water in a blazing fast 10 seconds (3L/min). Stealth on-the-go filtration and purification for the hiker, backpacker, hunter, or global adventurer seeking discretion and fast-flow purified water for drinking, filling hydration reservoirs, or cooking.
Compactand ridiculously easy-to-use, the UltraPress fits into any pack pocket (or cup holder), requires zero setup, and makes clean purified drinking water in 10 seconds (3L/min).
Award winning OnePress™ global protectionis effective on all 7 continents and empowers adventurers and travelers to drink from the world’s sketchiest water sources. Simply — Fill. Press. Drink.™
Removes all waterborne pathogensincluding virus (e.g. Rotavirus, SARS, Hepatitis A, Norovirus), bacteria (e.g. E. coli, Cholera, Salmonella, Dysentery) and Protozoa (e.g. Giardia, Cryptosporidium, Amoebae).
Ultra-powdered activated carbonfiltersparticulates (sediment, microplastics) and adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs, flavors and odors.
Replaceable purifier cartridgerated for 300 cycles (40 gal. / 150L).
RiverFlow™spoutdelivers a fast-flow of clean drinking water for chugging, filling hydration reservoirs and other bottles.
FlipCarry™handlerotates 90° for effortless separation (Inner Press from Outer ReFill) and easy carrying; provides a large pressing surface when flat.
Multi-functional SimpleVent™drink cap vents air (by twisting cap ½ turn) during purification and filtration; protects spout from cross-contamination.
TPE TopoGrip™placed on all heavy use surfaces for tactile, non-slip performance and durability.
Capacity:16.9 fl oz (500 ml)
Weight:12.5 oz (354 g)
Height:9.75" (24.77 cm)
Diameter (at base):2.95” (7.5 cm)
Active Technology:Electroadsorption and ultra-powdered activated carbon.
Fast-Flow Rate:10 seconds per 16.9 fl oz (3 liters/minute)
Removes:Waterborne pathogens (99.99% of viruses, 99.9999% of bacteria, 99.9% of protozoan cysts), including Rotavirus, Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery and more.
Filters:Particulates (sediment, microplastics) and ultra-powdered activated carbon adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs, flavors and odors.
Durability:Withstands 10 ft drops (full of water) onto concrete.
Cartridge Lifespan:300 presses (150L/40 gal), as “press time” reaches ~25 seconds (or three years have elapsed since first use) it’s time to replace your purifier cartridge.
Cartridge Shelf Life:Stored under proper conditions, an unopened Purifier Cartridge has a shelf life of 10 years. After a cartridge has been used, it lasts at least 3 additional years.
Materials: Made from BPA-FREE polypropylene #5, food-grade silicone, TPE and ABS food-grade plastic.
Testing Standards:Independently tested by a certified laboratory to meet or exceed NSF/ANSI protocols 42 and 53 for sediment, pathogen and chemical removal; meets the EPA Guide Standard and Protocol for testing microbiological water purifiers.
Designed in USA. Cartridge media made in USA. Purifier bottle made in China.
Grayl® purifier bottles are accompanied by a ten (10) year warranty covering workmanship and materials. We stand behind everything we sell. If you have a problem with your Grayl product, please reach out through customer support.