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GRAYL Ultralight Water Purifier [+ Filter] Bottle

4.7 4.7 out of 5 stars 1,398 ratings

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Package Information Bottle
Capacity
16 ounces
Item Weight
309 Grams

Additional Details

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Product Description

Purify Water Anywhere!

Purification + Filtration -- Safe Water for Any Adventure

  • International Travel: The GRAYL Ultralight Purifier is the ultimate travel companion where water isn't safe. The Purifier fits in standard backpack side pockets and passes through airport security in your carry-on. 
  • Outdoor Adventures: Whether your passion takes you into the high alpine forests, fly fishing on a gentle stream or just on a hike in your nearest state park, GRAYL makes safe, clean water easy. Don't worry about bacteria or protozoa - or nasty chemicals that may be leaking out of that abandoned mine upstream!
  • Emergency Preparation: Hurricanes, tornadoes, earthquakes (oh my). When disaster hits, municipal water systems are the first to go down. Be prepared!  Each GRAYL purifier comes equipped with a replaceable purifier cartridge that lasts for about 40gal (150L), enough for 2-3 months of drinking water. Replacement Cartridges can extend the life of your purifier indefinitely!

Fast, Compact and Easy to Use

Just Fill. Press. Drink.

Our simple, powerful, patented design allows you to use your body weight for mechanical advantage. GRAYL makes safe water virtually effortless. Nothing could be simpler - no pumps and hoses, no sucking and squeezing, no batteries or bulbs and absolutely no chemicals!

Makes 16oz (500ml) of safe, clean water in just 15 seconds so you hydrate and can keep moving! No need for a separate bottle, no need to lie on your stomach and suck. Just Fill. Press. Drink.

GRAYL purifiers are light and compact so you'll definitely make room for them during your next adventure. They fit in any backpack side pocket for easy access. Cleaning and storage is easy, so your purifier will be ready for your next adventure!

And GRAYL stands behind each Purifier we sell.

Trusted Purification Technology

We take the health of our customers very seriously. Each production run is tested at an independent, third-party laboratory for effectiveness against bacteria, protozoa and virus.

  • Technology #1 - Two layers of non-woven ceramic fiber, which provide a rugged and durable base.
  • Technology #2 - Positively charged mesh of ions (aka - little magnets) that grab onto impurities as they flow by, using a scientific property known as 'ion exchange'. The positive ions in the media bind to negative charges on pathogens and chemicals. The impurities stay inside the cartridge and clean water flows through!
  • Technology #3 - Activated Carbon absorbs flavor/odor and many chemicals and heavy metals, so your water safe and tastes great.

Built for harsh environments: Purifier cartridges contain two layers of this media, to enhance impurity removal and to provide a second layer of protection during your adventures.

Safe Water for Any Adventure

Trusted by adventurers, travelers and preppers

Unlike mere water filters, which only remove bacteria and protozoa, GRAYL Purifiers add protection against virus, plus many chemicals and heavy metals.

GRAYL is a proud member of 1% for the Planet.

We'll donate 1% from your purchase to environmental nonprofits.

Thanks for helping us make a difference.

International travelers throw away millions of single-use plastic bottles every day, very few of which are ever recycled.

Each Replacement Purifier Cartridge displaces 300 single-use plastic bottles.

Product information

Technical Details

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GRAYL Ultralight Water Purifier [+ Filter] Bottle


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Customer reviews

4.7 out of 5 stars
4.7 out of 5
1,398 global ratings

Customers say

Customers like the quality, weight and taste of the water purification unit. For example, they mention that it works well, is easy to use and is light to pack. Customers are also impresseded with the taste, saying that it removes the iron taste from the water. They appreciate the convenience of the product, saying it's a great water purifying option for backpacking gear. That said, opinions are mixed on ease of use and size.

AI-generated from the text of customer reviews

131 customers mention115 positive16 negative

Customers like the quality of the water purification unit. They say the filter works great, the system works well, and it's easy to use. Some customers are impressed with the filtering system and say it'll filter the nastiest swamp water. Overall, customers are happy with the product and recommend it to others.

"...This worked great!..." Read more

"...To me the pricetag was worth it for clean water that is safe to drink...." Read more

"The filter seems to work great for this bottle, water tastes great, HOWEVER.... a few things not mentioned you might want to know about before..." Read more

"...I stored the water in the fridge overnight. This system worked really well, and only took a little time. The Grayl was easy to use...." Read more

66 customers mention57 positive9 negative

Customers like the weight of the water purification unit. They say it's very portable, light to pack, and easy to carry. Some mention that it easily slips into a pocket of their beach bag or carry on. They also say it is compact and great for traveling.

"...It easily slipped into a pocket of my beach bag or carry on...." Read more

"...The pros - easy to carry and relatively lightweight, a lot of uses before replacing filter and highly effective against nearly all sources of..." Read more

"...PROS:1. Rather light weight, regular water bottle size - easy for backpacking2. Produces clean, great tasting water3...." Read more

"...It works really fast and easy, I love how compact it is. The whole concept of the bottle being the purifying cylinder is really cool...." Read more

42 customers mention38 positive4 negative

Customers are satisfied with the taste of the water purification unit. They mention that it tastes awesome, removes the iron taste, and is delicious. Some customers also say that the cup allows for mixing in flavorings.

"...maybe I shouldn't push as hard, but the water was always clear and tasted great!..." Read more

"...If you want clean tasting, pure water >> that's been stripped of bacteria, viruses, silt, parasites, heavy metals like lead, and certain chemicals...." Read more

"...The water tastes good after filtration, and the taste and odor have continuously been good...." Read more

"The filter seems to work great for this bottle, water tastes great, HOWEVER.... a few things not mentioned you might want to know about before..." Read more

27 customers mention24 positive3 negative

Customers like the water quality of the water purification unit. They say it purifies the water without having to suck it out, provides clean water every time, and is a convenient option for backpacking gear. Customers also mention that the water is amazing and fresh anywhere.

"...getting it wet, and will save it if I ever need it, great for water in a natural disaster, or if I need it for any reason, it will keep longer when..." Read more

"...If you want clean tasting, pure water >> that's been stripped of bacteria, viruses, silt, parasites, heavy metals like lead, and certain chemicals...." Read more

"...2. Produces clean, great tasting water3...." Read more

"...not leaving behind a pile of plastic and at the same time drinking incredibly clean water that tastes great. I got the orange and I love it...." Read more

15 customers mention15 positive0 negative

Customers are satisfied with the speed of the water purification unit. They mention that it works really fast and easy, the high level of filtration is done quickly and easily, and it is able to make clean water so fast. The compact design but very efficient.

"I really love this water filter. It works really fast and easy, I love how compact it is...." Read more

"...It was the fastest filter if only filling up once. However, if you’re filling up a large water bottle, processing water with this becomes a chore...." Read more

"...It only filters about 16 ounces of water at a time, but it goes quickly. I camped with my partner, we had three 32 oz water bottles with us...." Read more

"I was able to make clean water so fast. Everyone else in my group was squeezing bags for 10 minutes. I would walk up, scoop up some water and push...." Read more

113 customers mention64 positive49 negative

Customers are mixed about the ease of use of the water purification unit. Some mention it's extremely easy to use, convenient, and solid. They say it'll filter water quickly and the force is not significant. However, others say that overfilling it makes it even harder to press and filter.

"...It is super easy to fill with tap water, press it through, I counted and for me it doesn't always even take 7 seconds, maybe I shouldn't push as..." Read more

"...If you overfill it makes it even harder to 'press' and filter. So not overfilling is important...." Read more

"...It was easy to refill empty bottled waters and my kids and i drank in water fountains and restaurants across the countryside without worry...." Read more

"...The Grayl was easy to use. It does take steady pressure to filter the water, but I was able to do this on the table top by exerting continual..." Read more

15 customers mention7 positive8 negative

Customers are mixed about the size of the water purification unit. Some mention it's convenient, easy to drink from, and fits into the side pockets of a backpack. However, others say that it takes up a lot of room and holds a little less than 2 cups.

"...If the flask could not be so tight fitting and b) FULL instructions on the box please." Read more

"...PROS:1. Rather light weight, regular water bottle size - easy for backpacking2. Produces clean, great tasting water3...." Read more

"...Unfortunately, it's not convenient for everyday use. It holds a little less than 2 cups (less than a typical 16.9 oz bottled water)...." Read more

"...I got the orange and I love it. Also, it fits perfectly in the side mesh pouches of a backpack." Read more

22 customers mention5 positive17 negative

Customers are dissatisfied with the leakage of the water purification unit. They mention that the inner tube filter all the water spills out, making it easy to spill water all over the place. Customers also say that the filter needs to completely dry out before storing, and that it is very hard to push water through.

"...It's a little heavy, but it's very tough. The outer sheath will Leake a bit if held directly upside down, but other than that I love this thing...." Read more

"...time I used it I thought something was wrong because the water spilled out from the sides...." Read more

"...The other is that it is wide mouthed, so easy to spill water all over the place...." Read more

"...outer bottle, the clear rubber o-ring built into the top, which helps prevent leaks...." Read more

Great product, but beware...
3 Stars
Great product, but beware...
5-stars for functionality. Excellent product. Works as expected. I've drank a lot of water from the rivers in northern Michigan without getting sick and the water tasted amazing. It even removed the iron taste from the rivers in the Upper Peninsula.1-star for receiving a used product (or at least opened). No box came with the bottle or instructions -- just the bottle. I'm glad I ordered an extra filter when I purchased this because I had to toss the one that came with it since I don't know how much it was used or anything about its history. I would have returned it but I was heading out on a couple-week backpacking trip the day after receiving it.Overall, I feel like I was robbed of $25 for the original filter and I'm too ethical to return it after I've used it myself. If you're on the fence about this bottle, I definitely recommend the product but make sure yours comes sealed in its original packaging.
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Top reviews from the United States

Reviewed in the United States on April 23, 2018
14 people found this helpful
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Reviewed in the United States on February 21, 2019
5 people found this helpful
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Reviewed in the United States on January 12, 2019
6 people found this helpful
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Top reviews from other countries

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Bruno
5.0 out of 5 stars A must for real hikers!
Reviewed in Canada on December 7, 2022
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Bruno
5.0 out of 5 stars A must for real hikers!
Reviewed in Canada on December 7, 2022
Fisrt of all if you want this as your primary filter you might want to consider something with more flow , this bottle is perfect to throw on the sides of your bags and used when crossing a water point or creeks, it can extend by lots your water resources if hiking somewhere with water points and there is something about drinking water straight from a waterfall or creek that connects you to mother nature, im sure alot of hiker will approve. Main point is never having the fear of runing out of water on trail , lightweight, filters bacteria and viruses and no bad taste
Th only downside is that its pretty hard to press even for a big guy like me so use your brain and lean on it with your body weight dont press it with your arms muscles let gravity work for you !
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Tomasg
5.0 out of 5 stars Agua limpia siempre
Reviewed in Mexico on July 8, 2022
One person found this helpful
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Frankie
5.0 out of 5 stars works well
Reviewed in Canada on March 12, 2022
M & E
5.0 out of 5 stars Very good
Reviewed in the United Kingdom on October 18, 2023
F-J Mattmann
4.0 out of 5 stars Helt ok
Reviewed in Sweden on June 25, 2022