GRAYL GeoPress 24 oz Water Purifier Bottle – Filter for Hiking, Camping, Survival, Travel (Oasis Green) : Sports & Outdoors

10 reviews for GRAYL GeoPress 24 oz Water Purifier Bottle – Filter for Hiking, Camping, Survival, Travel (Oasis Green) : Sports & Outdoors

1. 

   Rated 5 out of 5

   Ron W – August 16, 2025

   5.0 out of 5 stars

   This filter water bottle really works!

   We bought the Grayl 24 oz GeoPress specifically because we were traveling to Africa, and we were not certain we could trust the water supplies. Probably the best way to write a review is to do a pros and cons breakdown.PROs1) This filter really works! We encountered a wide variety of water sources, and every time the Grayl produced filtered water that smelled and tasted good. I say that because some of the water smelled a bit funky before filtration; but after using the Grayl, it smelled good.2) The filter is easy to use. You just fill the outer vessel about 3/4 full, place the filter/inner vessel inside it, and push down. The filtered water fills the inner vessel and is immediately ready to use.3) The filter is relatively compact. The entire system is no bigger than a large water bottle.4) The Grayl system seems very well made. We used it almost every day while in Africa, and it worked perfectly every time.5) It basically filters everything: bacteria, protozoa, viruses, and odors. During the entire month we were in Africa, we experienced no gastrointestinal issues due to “bad” water because we only drank filtered water from the Grayl.CONs1) The Grayl system is fairly heavy. When you are trying to pack light, the Grayl system uses up a bit of your weight budget.There have been some reviewers that complained of water leaking around the seal between the inner and outer vessels. I believe they simply were not using the system correctly. If you take a little care and line things up as they were intended, it works perfectly every time.Also, some reviewers have complained that it takes too much effort to plunge the inner vessel when filtering. There is definitely some resistance when you are plunging (filtering), but if you are patient, it really does not take a significant effort. My wife used it frequently, and she applies a lot less force than I do.Bottom line, the Grayl filter system is an easy, convenient, and effective method for purifying water when you are traveling. I highly recommend this product and believe it is one of the best filter systems available.

   249 people found this helpful
2. 

   Rated 5 out of 5

   David J. Lunt – August 16, 2025

   5.0 out of 5 stars

   Ideal if you have young kids

   If you have young kids, this is your answer.I needed an easy purification system to use while hiking with my kids, and I needed something that would produce water “normal” enough for a young kid to drink abundantly. The Grayl was a home run.This filter works great, but it is especially perfect if you are traveling with kids. I took one of my kids (8 yrs old) on a short backpacking trip this summer and this was the ideal filter. She can’t really work the slowish straw-type or pump-type filters; adding the purifying drops makes the water taste like medicine and sometimes you have to wait awhile; and the UV-light systems might kill the bugs but the water remains silty or murky. The Grayl solves all of those problems.My kid isn’t a wimp; she would have reluctantly drunk murky or bad-tasting water, but she drank a lot more water (esp. important in July) since I could refill her water bottle with clear, great-tasting water as quickly and as often as she wanted.The second time I used the Grayl (long day-hike), I was able to continuously refill the water bottles for the entire family. Again, it was super convenient and not difficult to convince the younger kids to drink the clear and clean water that came out.Maybe it’s not 100% perfect: it’s a little hard to push the inner bottle down (but not that hard). I squirt myself in the face sometimes as excess water comes out the sides as I push down, but with young kids this thing was absolutely worth its weight in gold. The water looks and tastes like fresh clear tap water, and you can refill others’ water bottles as much and as quickly as you want.Like I said (wrote) above: Home Run.

   33 people found this helpful
3. 

   Rated 5 out of 5

   Kindle CustomerKindle Customer – August 16, 2025

   5.0 out of 5 stars

   Great Backpacking Filter

   My first backpacking trip with this did not go so well because I used it wrong by twisting it as I pressed it, causing the filter to come off and dirty water to get all over the inside of the water bottle. Luckily I had a backup way to filter water. Since learning from my mistake, I have trusted the Grayl as my primary water filter on all of my backpacking trips. It is simple to use (when used properly, dont twist it), filters water fast, water tastes great and have never gotten sick.

   5 people found this helpful

   

4. 

   Rated 5 out of 5

   Hadley – August 16, 2025

   5.0 out of 5 stars

   Hotel travel lifesaver

   So I bought this entirely for the purpose of when I’m travelling rather than going to buy water from a resort, hotel, or airport. I could just use this as a portable filter to fill up water bottles and other things by filtering faucet water.It works perfectly. I just got back from a six day trip and not once did I have to buy water. This made the faucet tap water taste nearly as good as normal bottled water. It removed the chemical taste entirely from the water and I was able to drink as much water as I wanted the entire trip rather than conserving water from purchased bottled. This model the normal GeoPress is on the larger end, I was able to fit this in the water bottle side pocket of my back pack with a little effort. It is also on the heavier end comparable to a half full 16oz plastic water bottle, and when full probably two full water bottles of weight which made me keep the bottle in the fridge rather than walking around with it on me full.I will also say to make sure you listen to the directions and follow the maximum fill line on the bottle. Due to the design of the filter if you go anywhere over the maximum fill line water will come over the sides. Also, make sure you twist the cap properly to vent the pressure built up when pressing the filter. There’s a small red and green dot to show line up with an arrow on the cap to show red when it’s closed and green when it’s twisted enough to vent.All in all incredibly happy with this purchase even at this price point, since the trip was in vegas I’ve easily recouped the cost of it in the money I saved not having to buy any water at all the entire trip. A word of warning, make sure you do the pressing filter process exactly the way it tells you to. If you’re like me and try to press it shoulder level down on a table it’s possible, but a killer arm workout and much slower than if done properly.

   11 people found this helpful
5. 

   Rated 5 out of 5

   Michael P Chong – August 16, 2025

   5.0 out of 5 stars

   Amazing easy to use travel water filter.

   Water filter is amazing. Works exactly as described and served myself and my wife while on trip in South America. Highly recommend this to anybody looking for a reliable travel water filter. Very easy to use and clean.

   2 people found this helpful
6. 

   Rated 4 out of 5

   scottjl – August 16, 2025

   4.0 out of 5 stars

   What else is there to say?

   Like the many many other buyers, I’m happy with this water filter/bottle. Fill it with water, press the inner bottle down, drink and enjoy. It works and it works well. I prefer this over my other filters including the popular “squeeze” filter. This is just less hassle.As others said. Use your body weight to press down and it will be effortless.Here’s a tip, get one of those silver or other bright permanent markers (depending on the color of your Grayl) and fill in the fill-line groove on the outer bottle. I filled mine in with silver. Super easy to see now and know not to go over. Grayl should use their fluorescent paint they put on the spigot in this line to make it stand out.Yes, I’m happy with this purchase, should have picked one up years ago instead of trying so many other filters. Happy to recommend it.

   6 people found this helpful
7. 

   Rated 5 out of 5

   sweet teas – August 16, 2025

   5.0 out of 5 stars

   Amazing filter…mind the quirks and you’ll be a happy camper

   I’m a practical person and decided this was the best filter to get since it does so much more than others. It:-Removes bacteria & viruses PLUS chemicals and microplastics. This is good for survival situations as well as camping. And with so much plastic in the environment, it’s possible that even wilderness water sources have some degree of plastic and chemical contamination. This is really an “overall” solution for today’s water issues–everything but desalination.-Improves taste & odor-Takes less time and grunt work than other systems-Has a super simple design and no small delicate plastic parts that could break easily on trailWe took it on a backpacking trip recently that had only lake water (no springs) and on a car camping trip with river water. It absolutely makes water taste great and no one got sick. Overall it’s wonderful, but it takes a bit of getting used to.Here are the quirks we discovered:1. For people just buying it, please note that you have to unscrew the cap to press the thing down, or water will spill up and out the sides. I never read the instructions but figured that part out by trial and error. Unscrewing the cap gives a way for air to get out so you don’t end up wasting water by having it come up and out the sides. It’s also VERY hard to press down when the cap is screwed on.2. It’s a bit hard to press down, even with the cap unscrewed. My husband did most of it for both of us. For me to do it myself, I find it easier to set it on the ground or something pretty low and lean over it, using my body weight to press. Press slowly–if I counted to ten it was easier than if I tried to force it down.3. It’s easy to think you’re done pressing, then find out you missed a bit because water leaks out the sides. Once you’re done pressing, press again 2-3 times to make sure the lip of the press part is totally flush with the top of the bottle. You can test it by tilting the bottle and seeing if it drips, or looking closely. It would be easy to think the bottle was defective if it leaked and you didn’t realize you hadn’t pressed it all the way down.4. Sometimes while pressing, water would spill out the sides even with the cap unscrewed. If you look closely, there’s a faint fill line on the back side of the bottle, about 4/5 of the way up. If you fill exactly to this line and not above, you won’t have water spilling out the sides. It took me a few tries to figure this out. I thought you had to guess how high to fill it and was carrying wasted air space in the bottle before my son noticed and pointed out the handy line.5. As a side note, at one campground we had amazing spring water piped into the campsite. I filled the Grayl from the top (no filtering) with this awesome water to bring home. Several weeks later it still tastes fresh and sweet. The same water “soured” a bit in other containers after sitting a while. Not sure why the Grayl performed better as a storage bottle, but it did.The system is a bit heavy, but it doubles as a water bottle so it’s not wasted space. And it’s the only one that does everything in one. If you’re on the fence, just buy this one. Once you get used to its quirks, it’s unparalleled.

   203 people found this helpful
8. 

   Rated 5 out of 5

   Daniel Tirpak – August 16, 2025

   5.0 out of 5 stars

   So cool!

   Great for camping, good price and works well! Can’t even taste anything weird once you filter nasty water! Make sure to read and follow care/instructions and it will last!
9. 

   Rated 1 out of 5

   Refuge Denied – August 16, 2025

   1.0 out of 5 stars

   No Quality Control for Replacement Filters

   GRAYL GeoPress 24 oz – Purchased July 2023.My town’s tap water has a strong smell and taste of chlorine. I just can’t drink it. My eyes are always red and burn a bit after I shower and my bathroom always smells like I just cleaned with mild bleach afterward even though I don’t use bleach cleaners. You can even smell chlorine when you flush the toilet. I’ve been using a small under-sink 3-stage filter system for about 10 years in my kitchen, but I am selling my house sometime in the next year to travel full time on my motorcycle. I thought I would try out a few portable filter systems that could remove chemicals like chlorine along with harmful micro-critters if I need to drink ‘creek water’.For the most part, I liked the Grayl GeoPress as packaged. When I bought it I also purchased a spare filter, both items were sold by Grayl / shipped from Amazon. I keep a count of how many times I use the filter via an app called ‘Tally’ on my phone that I trigger via a shortcut on my watch. Even though Grayl recommends replacing the filter after roughly 350 uses, I did not notice any additional resistance in a press with the original filter and continued to use it until 400 uses. I didn’t think it would be much of an issue since I was only filtering tap water, and as far as I could tell, it worked great.The only issue I had using the original filter was the fill line on the outer container (‘dirty’ water) is marked a little too high. If you fill to that line you are going to get overflow spill from the side as soon as you start to plunge. Not a big deal, just fill to about a centimeter (~3/8 inch) below that line and it worked great.Replacement filters are the real issue …So, I had to travel out of town several hours away for business, and while I was in ‘the big city’, I took advantage and went to an REI to pick up a little camping gear. While I was there I picked up another replacement Grayl GeoPress filter cartridge and had them order a third to ship to my house (they only had one in stock, and, remember, I purchased one when I bought the GeoPress).A few weeks later after I hit 400 uses, I removed the original filter, washed the GeoPress and opened one of the replacement filters I had in the drawer. I’m not sure which was which as I didn’t mark where they came from. With the new filter on, just like before I pressed through some tap water, made some coffee with it and went about my day. I think I used it again later that evening to boil some water for dinner.The next morning I went to filter some water for coffee … the smell from the filter when I pulled the inner container from the outer about knocked me over. It was so foul. Its like someone smacked me in the face with a dead squirrel that had been baking in the sun for 3 days. I don’t know if that was a used filter that was dried, carefully re-packaged, and re-sold or maybe some critter parts ended up in the filter during manufacturing, but it was absolutely awful. I just chalked that one up to a loss. These things might happen one in a million, right? No big deal.I removed that filter and put it in a zipper freezer bag and tossed it in the trash. I grabbed another spare filter (again, not sure which one came from where) and attached it to a freshly washed GeoPress. I filled up the outer container a centimeter below the fill line and put the filter container in to press a fresh container of water. Nope. Filter container wouldn’t budge. I continued to apply more pressure until I was actually pushing myself up on the counter. Catastrophic o-ring failure – water sprays out of the side everywhere.I clean up the water, remove the filter, shake off and inspect it. Looks pretty normal so I get the original filter out of the trash to compare. The o-ring on the replacement filter is much thicker and is now partially out of the groove. These things are much wider than I expected. They aren’t actually just rings and the way they are shaped would require a lot of work to force out of the groove. I use the back end of an egg-spoon to force it back in place and put it back on the GeoPress. I try again and the inner container will not press down; I didn’t force it this time.At this point I thoroughly rinsed the original filter and put it back on the GeoPress. It pressed out a full container of filtered water with little effort so I switched the filters again. And again, the 2nd spare would not budge. So irritated at a more than $60 loss in replacement filters, I tossed both the 2nd replacement and original in the trash. I thoroughly dried the now filterless GeoPress and stuck it in the drawer with the last spare cartridge and purchased new cartridges for my under-sink filter (another $110).Fast-forward a few weeks and I’m watching a motocamping vid on YouTube. I notice the camper is carrying a GeoPress and pours out some water into a pot for his dinner. I think, “I’ll give that another go with the last filter cartridge. What are the odds I get 3 out of 3 duds?” I got my answer on first use of the last filter. I put the last filter on the GeoPress, filled the outer container about 1 cm below the fill line, start to press down and without much effort water sprays out from between the containers all over me and the counter. I take a deep breath, clean up the mess and start over, pressing MUCH slower this time. Doesn’t matter, I hear a little gurgling through the open spout and as soon as pressure starts to build it sprays water all over the place again. Frustrated, I dump it, wipe it down and set it aside. I still have the under-sink filter for at least another 8 months while I try out a few more portable filters.This review is already way too long, and I doubt anyone’s actually going to read it this far, but I have been using the GeoPress at least once per day trying to figure out if I’m doing something so drastically different since the original filter cartridge (nearly flawless 400 uses). I have to hold a towel around it because it WILL spray out of the side every time, even if I only fill it half way. I have removed this 3rd (and final) cartridge and inspected it multiple times but I can’t see anything obviously wrong with it. It *does* filter water (no chlorine smell or taste), but it still sprays water out every time, too.My advice is skip this. Forget all the ‘rainbow and unicorn’ reviews online that have likely not used this filter past the original cartridge and try something else. At roughly $100 for the device with one filter + $30 (+tax) per replacement filter that seem to be nowhere near the quality of the one that comes with it, this is an insanely expensive 300-400 use disposable system. If I find another portable system to recommend I will update this review to recommend that. For now, I’m back to square one.

   159 people found this helpful
10. 

    Rated 5 out of 5

    JAH – August 16, 2025

    5.0 out of 5 stars

    Easy to use and carry

    Used this up in Boundary Water for 10 days. It filtered out sand, sediment, even got most of the tannin stained color out of water. Second time I’ve used one up there. It does get a little hard to press if you’ve filtered crud-rich water. It takes some strength to press it down quickly, but even light pressure will work, it just takes longer. We pulled the inner part and wished around in the water to rinse off gunk and it helped. Still a great, easy to use item.