Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Standard View / Olive Drab
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Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Standard View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Virus View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fill View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Press View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Drink View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Flip Carry View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fits Easily View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Parts View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Separated View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Cartridge View / Olive Drab
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Standard View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Virus View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fill View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Press View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Drink View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Flip Carry View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fits Easily View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Parts View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Separated View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Cartridge View / Covert Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Standard View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Virus View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fill View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Press View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Drink View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Flip Carry View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fits Easily View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Parts View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Separated View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Cartridge View / Desert Tan
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Standard View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Virus View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fill View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Press View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Drink View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Flip Carry View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Fits Easily View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Parts View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Separated View / Coyote Brown
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Covert Edition / Cartridge View / Coyote Brown

16.9oz UltraPress® Purifier - Covert

4.8 out of 5 star rating
4.8
460 Reviews
Sale price$89.95
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UltraPress now has a boost! All bottles ship with a One-Way Valve pre-installed making it possible to add electrolytes, drink mixes and other flavored liquids directly into an UltraPress. 

Overview

Drink-Mix & Electrolyte Ready! 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.

  • Compact and 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 protection is effective on all 7 continents and empowers adventurers and travelers to drink from the world’s sketchiest freshwater sources. Simply — Fill. Press. Drink.®
  • Removes waterborne pathogens including 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 carbon filters particulates (sediment, microplastics) and adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs, flavors and odors.
  • Replaceable purifier cartridge rated for 300 cycles (40 gal. / 150L).
  • RiverFlow® spout delivers a fast-flow of clean drinking water for chugging, filling hydration reservoirs and other bottles.
  • FlipCarry® handle rotates 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.
  • SoftPress® ergonomic comfort pad (on drink cap) provides for non-slip, anti-fatigued pressing.
  • 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 (including PFAS & VOCs), pesticides, herbicides, heavy metals, flavors and odors.
  • Durability: built tough to perform in harsh conditions and 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 or LIVE CHAT.
  • Replacement bottle parts and replacement cartridges are available for purchase on our website.
  • Click here for online an online visual Quick Start Guide guide with step-by-step videos that contain the nuts and bolts for quickly getting up to speed with the UltraPress® Filter & Purifier Bottle.
Fill with water from a fresh water source.
Vent spout cap 1/2 turn.
Press with ease.
FILL. PRESS. DRINK. One-Press Global Purification.

FILL. PRESS. DRINK. ONE-PRESS. 10 SECONDS.

Virtually no setup time, and fast performance, UltraPress® purifies and filters contaminated water in 10 seconds (3 liters per minute) from any water source. From adventure travel to survival make the world’s sketchiest freshwater sources clean to drink from.

Separate Inner Press from Outer Cup.

01 ROTATE & PULL APART

Grasp the Inner Press with one hand and the Outer Cup with the other, then pull apart. A quick twist helps to initiate separation.

Fill with dirty water.

02 FILL WITH DIRTY WATER

Fill from a stream or lake, or from any bathroom sink or rustic hostel tap.

Vent spout cap 1/2 turn and press.

03 VENT & PRESS

Twist the SimpleVent® cap 1/2 turn to allow air to vent during purification process. Utilizing your body weight, press with steady downward force.

04 DRINK PURIFIED WATER

Fast and easy; makes safe drinking water in 8 seconds - anywhere!

One-Press Global Purification removes viruses(99.99%), bacteria (99.9999%), Protozoa (99.9%); filters particulates, chemicals, heavy metals

ONE-WAY VALVE.
ELECTROLYTE AND
DRINK-MIX READY

The silicone One-Way Valve prevents liquid from reversing direction and flowing back into the filter Cartridge. Allowing the use of electrolytes, drink mixes, and other beverages with your Grayl UltraPress® Filter & Purifier Bottle.

ADD AN EXTRA CARTRIDGE AND VALVEBy Clicking the Link
Silicone One-Way Valve
UltraPress Cartridge with One-Way Valve pre-installed.
Now you can use electrolytes and drink mixes with the One-Way Valve installed.
Try mocktails, cocktails, seltzer, electrolytes, drink mixes, and beer in your Grayl with One-Way Valve installed.
User testimonial / review. Grayl is great for fishing in Colorado.
Filling from a river with the UltraPress® Filter & Purifier by Grayl.
Enjoy a drink break on a hot day with the UltraPress by Grayl.
The perfect carry for your Grayl UltraPress. Try the BottleLock Hip Pack.

LIGHTWEIGHT KIT.
CARRY EMPTY.

Bring the UltraPress® along for the ride as your empty lightweight vessel. There is no need to carry along a bottle thats heavy and filled to the top. Just Fill. Press. Drink. and be on your way with your empty Grayl.

SHOP BOTTLELOCK HIP PACKSBy Clicking the Link
Clean water is paramount in survival situations. Try the UltraPress Filter & Purifier by Grayl.
Compact for every activity.

COMPACT
FOR EVERY
ACTIVITY.

This reliable all-day companion is designed to keep up with your active lifestyle, fitting effortlessly into any pack pocket with its compact 16.9 fluid ounce size. Stay hydrated on the go with each river fill-up, and savor the taste of the water at your feet with UltraPress®.

Take a closer look at the parts of an UltraPress Filter & Purifier.

DRINK CAP

RiverFlow® Spout
A wide contoured spout delivers a fast flow of water.

SimpleVent®
Twist the cap 1/2 turn to vent air during purification process.

SoftPress®
Comfortable pressing pad provides for an ergonomic, non-slip large pressing surface.

FlipCarry®
Rotates 90° allowing for easy carry and effortless separation of Inner Press from Outer Cup.

UltraPress Covert Drink Cap.

INNER PRESS

16.9 fl oz (500 ml) of clean, filtered and purified water. NOTE: Dirty water never enters the Inner Press.

Filters & purifies 10 seconds per 16.9 fl oz (3 liters/minute).300 presses (150L/40 gal)
Removes viruses plus bacteria and protozoa. Improves taste, smell and clarity. Filters microplastics, PFAS, and lead.

UltraPress® Inner Press.

OUTER CUP

TopoGrip® Surfaces
Durable, tactile non-slip grip material placed on all heavy use surfaces.

Max Fill Line
A maximum fill line is located on the backside of the Outer Cup. 16.9oz (500ml).

Non-Slip Base
Soft, non-slip base provides durable protection.

UltraPress® Outer Cup.
View the UltraPress® Quickstart Guides.

QUICKSTART GUIDES

Need to know more? Get to know the GeoPress® Purifier with our Quickstart Guides.

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4.8 out of 5 star rating
4.8
139 Reviews
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4.9 out of 5 star rating
4.9
2673 Reviews
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Best top rated Grayl GeoPress Filter and Purifier Water Bottle - 24 Fluid Ounces / Nature Edition / Standard View / Wanderer Red
4.9 out of 5 star rating
4.9
2673 Reviews
24oz GeoPress® Purifier - Nature
Regular price $99.95 Sale price $99.95 Save $0.00

FAQ

To maximize the lifespan of a cartridge, always choose the clearest water. GeoPress® cartridges deliver ~350 cycles (250 liters / 65 gallons) while UltraPress® offer ~300 cycles (150 liters / 40 gallons). Water quality matters; avoid silt and sediment. Preemptively filter out silt and sediment with a handkerchief or t-shirt to extend the life of a cartridge.

The time it takes to press with your GeoPress® or UltraPress® will gradually increase over time. We recommend replacing the cartridge once the 'press time' reaches approximately 25 seconds (or three years have passed since the first use). Please note that colder water may require longer pressing time and does not necessarily mean the cartridge needs to be replaced.

An unused and airtight cartridge can be stored for up to 10 years. Once opened, use it for 3 years or until press time is ~25 seconds.

GeoPress® and UltraPress® cartridges filter and purify most freshwater sources. Avoid using them with salty or brackish water. When treating freshwater, start with the cleanest water available, such as streams and rivers.

Grayl's activated carbon effectively adsorbs many chemicals, pesticides, herbicides, heavy metals, etc. However, it is not designed for industrial disasters, coal ash spills, high lead levels, mercury, nuclear disasters, high tannin concentrations, or water with toxic blue-green algae (e.g. cyanobacteria). Find another water source in those situations.

Grayl® cartridges contains non-woven ceramic fibers that have a high electropositive charge. These fibers effectively block and trap microorganisms and particulates, ensuring that submicron contaminants are removed through electroadsorption. Additionally, the cartridge is equipped with ultra-powdered activated carbon, which efficiently adsorbs chemicals, heavy metals, bad flavors, and odors.

To avoid contamination, use the Spout Cap. If dirty water comes in contact with the Inner Press, wash the Grayl (not the cartridge) with soapy water and rinse thoroughly. Alternatively, dilute contaminants by pressing and agitating water through a GeoPress® or UltraPress® purifier bottle 5-7 times.

Proper maintenance for your GeoPress® or UltraPress® is crucial for optimal performance. After your adventures, ensure to follow these simple steps to keep your purifier in top shape. Start with a 'dry press' by pressing the wet purifier into the empty Outer Cup and disposing of excess water. Next, remove the cartridge and allow it to air-dry for 2-4 days. For the remaining components, hand wash them with warm, soapy water and let them air-dry. To maximize the lifespan of the cartridge, store the unit assembled. With proper care, the cartridge can last up to three years.

Yes, experience the hydration benefits of electrolyte-infused water in a UltraPress® or GeoPress® when equipped with a One-Way Electrolyte & Drink-Mix Valve (available since April 2023).

Always add electrolytes into the clean drinking water side. Avoid adding flavoring or electrolytes directly into a cartridge not equipped with a One-Way Drink Mix Valve, as it can diminish the cartridge's lifespan and efficacy. In those situations, pour the clean drinking water into another water vessel and then add electrolytes or flavorings.

Size, capacity and weight! Both models offer the highest level of protection from waterborne pathogens (99.99% of virus, 99.9999% of bacteria, and 99.9% of protozoan cysts, including Rotavirus, Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery). They also filter many heavy metals, chemicals, and microplastics.

GeoPress® filters and purifies 24 oz of water, ideal for individuals and groups looking for a high capacity. UltraPress® purifies 16.9 oz and is great for individuals with limited space or when traveling with small pack side pockets.

Grayl® filter and purifier bottles are made from: BPA-free polypropylene #5, food-grade silicone, TPE and ABS food-grade plastic. Our products are designed in Seattle, Washington, and manufactured by our partners in China with the exception of our cartridge media which is produced in the United States.

Reviews
Q&A

CUSTOMER REVIEWS

4.8
4.8 star rating
Based on 460 Reviews
4.8 out of 5 stars Based on 460 Reviews
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Peter S.
Verified Buyer
5 star rating
Updated 16.9 oz Water purifier
I bought this to replace my first generation Grayl purifier, much easier to drink out of the smaller spout. This is the 3rd Grayl I have purchased and will only trust my water purification needs to Grayl! Love these products!
06/11/24
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James I.
Verified Buyer
5 star rating
Way Better Than A LifeStraw
Love the product, wish it came in camo colors. Website could explain the comparisons between the filter types and press types alot better....maybe a comparison chart. Other than that, I love the products!!!
06/06/24
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Gabe F.
Verified Buyer
5 star rating
Works great! Not perfect, but close!
I've only used it for a couple trips so far, but it has filtered water and I haven't gotten sick--so it guess it's working! In any case, I have greater peace of mind in the safety of my water. I sometimes wish there was a little more purchase on the top
05/21/24
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Jeff S.
Verified Buyer
5 star rating
Great product and service...
Fantastic products. The Ultrapress’s handy size fits all my systems and has become my favorite water filtration gear for its ease of use and purity. I use both the Geopress and Ultrapress in a multitude of outdoor situations. Thanks for the
05/20/24
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Paulette T.
Verified Buyer
3 star rating
Not as easy to use as it looks
If you have arthritic hands, this will be difficult to use. You need a decent amount of strength to push it down as well as take it apart to clean. Lot of work for little water. It’s impossible to get the last bit of water out of the cup without removing
05/18/24
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