Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Standard View / Forager Moss
10 Year Product Warranty Badge
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Separated View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Virus View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Fill View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Press View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Drink View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Flip Carry View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Fits Easily View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Parts View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Cartridge View / Forager Moss
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Standard View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Virus View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Fill View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Press View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Drink View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Flip Carry View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Fits Easily View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Parts View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Separated View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Cartridge View / Forest Blue
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Standard View / Camp Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Virus View / Camp Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Fill View / Camp Black
 Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Press View / Camp Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Drink View / Camp Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Separated View / Camp Black
500ml UltraPress® Purifier - Nature
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Fits Easily View / Camp Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Standard View / Mojave Redrock
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Virus View / Mojave Redrock
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Fill View / Mojave Redrock
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Press View / Mojave Redrock
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Parts View / Camp Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Cartridge View / Camp Black
Best top rated Grayl UltraPress Filter and Purifier Water Bottle – 16.9 Fluid Ounces / Nature Edition / Separated View / Mojave Redrock

500ml UltraPress® Purifier - Nature

Regular price£89.95
/

Color
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10 Year Warranty
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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 flavoured liquids directly into an UltraPress.

Overview

Drink-Mix & Electrolyte Ready! Compact, fun, and ridiculously easy to use — the 16.9oz UltraPress® Purifier Bottle fits into any pack pocket (or cup holder), requires zero setup, and makes clean, great tasting drinking water in a mere 10 seconds (3L/min). On-the-go filtration and purification for the hiker, backpacker, camper, emergency prepper or global traveler seeking fast-flow purified water for chugging, filling hydration reservoirs, or cooking. Simply — Fill. Press. Drink.®

  • 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 dirty water.
Vent Spout Cap 1/2 turn.
Press with ease.
Drink clean purified water.
Fill. Press. Drink. 10 Second One-Press 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 the Inner Press from the 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-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
UltraPress Cartridge with One-Way Valve for drink mixes and electrolytes.
UltraPress Cartridge and One-Way Valve for Electrolytes.
Use your favorite electrolytes or drink mix with your Grayl UltraPress w/ pre-installed One-Way Valve.
User testimonial. Great for camping and hiking.
Press and purify on the trail with UltraPress.
Bring world-class purification with you anywhere you go.
Try our BottleLock hip pack for a perfect carry fit for your Grayl UltraPress.

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
User testimonial. Great for travel to Nicaragua.
UltraPress is compact for any 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.

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 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
UltraPress Visual Quickstart Guides.

QUICKSTART GUIDES

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

LOOKING FOR MORE CAPACITY?

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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.

Overall rating: 4.73125 / 5 from 320 reviews.

AI Generated Review Summary

The 500ml UltraPress® Purifier - Nature is highly regarded for its quality, effectiveness, and convenience. Customers appreciate its sleek design, great taste, and the ability to add electrolytes and other liquids directly into the bottle. The purifier is praised for its portability and ease of use, making it a top choice for travelers and on-the-go users.

Summary topics

  • UltraPress: 5%
  • Purifier Quality: 5%
  • Product Size: 10%
  • Product Quality: 5%

Review topics: ["fit","size","model","issues","weight","functionality","performance","pack","quality","looks","shipping","price","color","design","improvement","works","construction","customer service","volume","service","replacement","husband","strength","water","bottle","filter","grayl","tasting","purifier","ultrapress"].

Review highlights

  • "I filtered enough to fill my 1 liter Platypus with great tasting water."Kathryn B.
  • "This is an excellent quality, durable bottle with what many consider the best filter in the market."Steven D.
  • "The 16.9 Oz ultrpress is a great physical size and works very well for filtering drinking water."Mike C.

Reviews

Dirty water leaked

"My particular example has arrived faulty - the outer “dirty water” vessel was slightly ovalised which allowed the residual unfiltered water to leak over me when taking a drink from the filtered water. I’ve requested a return and had an initial quick response, though the promised pre-paid returns label is yet to arrive. Hoping it gets sorted quickly and I can revise the rating."

Tony B. (1/5)

Loving it so far! Traveling

"Loving it so far! Traveling in parts of Eastern Europe where they say the water is ‘safe’ to drink but why chance it. The Grayl 16oz bottle is the perfect blend of ease of use coupled with small size. In less than ten seconds we can get fresh filtered water from virtually any source without fear of bacteria or other bad things. Very happy with my purchase!"

Jeff B. (5/5)

Very hard to use

"I had to ask for help to pull the inner section out so that I could fill the outer shell with unfiltered water. Also it was difficult to push the inner section with the filter down, but at least that was doable and expected."

Teresa A. (2/5)

Perfect Size for traveling in unknown conditions

"We are traveling to remote locations in South Africa. As health concerns came to our forefront we purchased the 16. 9oz UltraPress® Purifier. It fits perfectly in our backpack and car drink holders. Easy to operate. Since speed was not a high priority the 10 seconds to push the inner bottle down with the filter into the outer bottle was not an issue."

Raj N. (5/5)

Great Travel Companion

"I used my UltraPress on a recent vacation in Colombia. It was reassuring to have the filtered water available at all times. And the water always tasted clean and with no funny flavors at all. It’s lightweight and easy to operate. One thing I wish it had is a connector from the cap to the lid. Too easy to drop the cap and potentially lose it."

Jane D. (5/5)

Another Great Grayl Filter

"I just purchased an Ultrapress to do in a Search and Rescue 24 hour pack. I pack water, but you never know, and the orange one will not get lost in the dusk or gloom. . . I hope. It pairs perfectly with a funnel bag and a 450ml cup. . . and does not take up too much room. Works fantastic for some quick cold mountain stream water. . . . purified!"

Dennis B. (5/5)

I am a bit of

"I am a bit of a water snob and I travel a lot for work. My habit when arriving at my destination was to buy a flat of water bottles - purified, not spring water. I would lug them up to my hotel room and use them all week. So it was a hassle, complete with microplastics. This bottle has changed all that! I can use water from any tap and make it taste good and have purity that I desire. Absolutely perfect!"

John P. (5/5)

Excellent Product

"I use mine to filter water from public sources. Excellent while flying. Quality product"

William M. (5/5)

Great product but would like to see some changes

"The product works great, filters great, and the water tastes great. I have the larger Grayl that I use for camping/hiking. I use the 16. 9 ounce for daily use. On both Grayl's I have, it is difficult to see the water fill line on the cup. I work around it by using a sharpie to darken it up and it makes it a little easier to see. Second, I wish the 16. 9 had cap retention like the larger model. I can see this lid getting lost or dropped and not able to retrieve it. The only other thing is it can be a struggle to break the seal, even with the lid completely off, between the cup and the filter. When it breaks free some of the residual water that is always left after filtering water goes flying everywhere. If there was some type of release valve on the bottom of the cup that breaks the seal just to get the two pieces apart, it would be great. If those three things were changed it would be absolutely perfect."

Robert A. (4/5)

My third Grayl

"I like the Grayl and trust it as a purifier. My one complaint is that the seal between the two main pieces eventually goes bad and then when you try to pour out the clean water, the unpurified water from the bottom chamber drizzles out with it."

Randy C. (4/5)

Q&A

I noticed the Grayl filters out a lot of things. Is there anything known to Grayl it doesn't filter out that I might find in well water, water in lakes, streams or rivers?
Thank you so much for reaching out and great question. The most notable contaminants that Grayl purifiers do NOT remove are salts/minerals, tannins, and cyanobacteria (toxins from blue/green algae). For more information, please feel free to reach out directly to our customer service team at info@grayl.com
I am traveling to Thailand. We will be staying in small hotels, but I understand the water is sketchy. Can I use this non-stop for three weeks? How long do you have to wait after pressing the water until you can drink it? If the clean water sits in the geo press overnight, is it still ok? Can contaminants leak back in?
Water is ready for drinking immediately after pressing. You can also drink it next day - after filtering, a Grayl functiond the same as any standard water bottle. Your Grayl will be perfectly functional for your three week trip. Just make sure to follow the cleaning and storage directions once you return.
I like REALLY cold water. Does the titanium version help keep the water cold?
No, none of our purifier bottles have any type of insulation type properties.
Are the old ultralight filters compatible with the current ultrapress?
Yes, and the same is true for the opposite. UltraPress replacement purifier cartridges are also compatible with the Ultralight.
What is the difference between the 16.9 oz Nature Edition versus the 16.9 oz Covert Edition?
The only difference between the two editions of the UltraPress are the colors available.