Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron

This filter is awesome, used it on a three day backpacking trip recently. No issues whatsoever. For everyone’s information however, the reservoir bag does not seal fully when filled. The top, although it folds nicely into a handle for carrying - which is amazing and super convenient - it does not prevent water from coming out the top if you, let’s say, put the bag down on the ground to get the straps adjusted or something. So the reservoir is not for carrying water for long distances, unless you’re prepared to always keep it upright and never put it down until you can hang it. Still super doable if you’re going short distances, it doesn’t spill when you’re holding it by the handle, just if you put it down on the ground while filled and it falls over. Other than that, this kit is awesome. Gives you the option of reversing the steps, instead of filtering the water into the small plastic water bottle pouch, you fill the plastic bag with the unfiltered water, screw the filter straw onto the pouch, and drink it directly out of the filter (basically a life straw). I think the bag might be half a liter that it comes with, so if you want a bigger pouch then you’ll have to order one. This is the way I’ve seen most through hikers using it, usually with the sawyer filter setup. But this filter gives you both options, filter the clean water from the reservoir into the plastic flexi pouch or any other bottles you want, or collect the unfiltered water into the flexi pouch, attach the filter directly to the pouch, and drink through the filter. Super lightweight, condenses into a really small volume, durable (I carried water in the reservoir for more than 5 miles, by hand, leaning it against a tree when I had to put it down, and the material held up). We used it for three days and that was more than two weeks ago, long enough for any water born sicknesses to have shown if it didn’t work. Great purchase.

This is a great water filtration system for camping. For those who are used to pumping to get clean water, this will be a pleasant revelation. For those who have used other gravity feed systems this will be an inexpensive and surprisingly quick alternative. I recently used this on a 4 day backpacking trip and love it. Here are a few highlights: 1. The feed back is lightweight, flexible, and fills to 1.5 gallons in one scoop of lake water. (BTW, don't fill it all the way to 1.5 gallons--it'll work better at about 1.25 gallons.) My friend is going to purchase the bag simply because it's so much easier and more efficient than the bag his (very expensive) system came with. 2. The filter has a bigger barrel than my Sawyer, and thus flows at about twice the speed. 3. The filter can be back flushed with the provided collapsible bottle--no need to bring along a syringe for back flushing. 4. The hanging system (also provided) is high quality and works great. Here's what I don't know: 1. My friend and I suffered no symptoms of waterborne illness, but the flow rate was so strong when we first started using the system that I was worried that it might not be filtering. What can I say? I guess I'm suspicious because it worked so well! The flow rate did decrease on the 4th day (after filtering about 11 gallons of water). But even the reduced rate was similar to my Sawyer filter. 2. The instructions didn't say anything about back flushing. I went ahead and back flushed when I got home, since every other filter I've used makes some provision for cleaning/flushing. I don't think it damaged it, but don't know for sure. I'd love someone from the company to respond to that question.

This water filtration system was absolutely perfect for my recent backpacking trip. A group of us hiked over 6 miles and camped near the river and was able to fill this water filtration up and use it amongst 6 to 12 individuals easily. It worked seamlessly and was truly beneficial for life, sustaining good filtered water. This item was very lightweight and was able to pack neatly in a backpack and did its job.

I bought this for a camping trip to replace another more expensive gravity system that I had used for years. The short version is; I was able to successfully use it, and I didn't get sick from it (which is always a plus) but some things could definitelybe improved. Read on if you want the full details. Pros- It's a decent price, and the one I got came with 2 filter straws and drinking bags as well. It definitely works, it filters pretty quickly (honestly a little too quick it seems, but we will get there in a second), and it isn't difficult to set up and use. The reverse flushing system is easy to use since the mouth piece can be removed and a bottle (or included bag) can be screwed into it. - If you are short on cash and just need something to filter some decently clean running water, then you could certainly do a lot worse. Cons- Unlike the systems I'm used to (which, granted, cost at least twice this) there is no degree of filtering done in the bag at all, everything just feeds down into the hose that connects to what essentially boils down to a lifestraw. So there is only that one stage of filtration, and that stage doesn't filter out everything, so I would still boil it unless you are drinking from a fairly pristine spring or running creek. Since there is only that one stage, it is really important that no leafs or debris is picked up when filling the bag, or the system will get clogged quickly. This could easily be remedied with a even just a screen in the bottom of the bag, but would still slow the process. I was only there for a night using this, and it was already noticeably slowing down and needed to be back-washed (which is necessary anyway with any of these systems, but really important here). The mechanism to stop and start the flow is cheaply made plastic and kind of difficult to use one handed. Not sure how long it would hold up either, since there was some noticeable whitening on the hinge part after one night's very occasional use. My biggest gripe is lack of compatibility with any other filters, and them not selling an upgrade that fits this system. (As far as I can tell, anyway) All in all, it's serviceable in a pinch, and it's worth the price. I wouldn't rely on this as your primary water filter in a true bug out situation though. Durability is definitely in question here, but I'll try to update after more uses. It's decent, but it could be a lot better. If you have the money then I would go ahead and just invest in a Sawyer, or higher dollar one. If you are strapped for cash, and just need something to work for the time being or an emergency, then it should work well enough for you, as long as you are careful about water sources and keeping it clean. Hope this helps someone out there 👌

We bought this for a first time backpacking trip and it worked great!!!! Plenty of water flow and worked quickly. Our friend with a very expensive one agreed this one worked better and wanted one himself . Great purchase!

Came home from Uzbekistan with the worst case of what my grandma used to call the “gogo-amago” ever. Figured it either came from carelessly rinsing iur toothbrush in tap water, or eating a fresh fruit washed in tap water. Made an advance plan for our next trip to a third world country. No salads. No fruit unless we washed it ourselves. No smoothies unless they used bottled water. Don’t use room water provided unless we saw them filter it ourselves. Have a plan in place to provide so we won’t dehydrate and for tooth brush. This little gizmo is AMAZING. It is lightweight, super easy to pack, easy to use once you get the hang of it, cheap to use, and saves tons of plastic. My only fear is, the straw part is very sturdy, and so far the bag part is, too, but it seems much more likely to wear out, crack, or get punctured (even though it’s a thick plastic) than the straw. I wish they’d include and extra bag or two, as well as instructions to clean and store straw and bag. Well worth what seems to be an initial “investment”. Other travelers were jealous, and asked for details. Will be packing it for our next trip, to rural Morocco. Wouldn’t dream of traveling without it now. Has earned a spot in our minimal packing. Os: bought extra straws, but it seems like these things last forever. Hope we’ll get to travel enough to use the extras!

Great product - worked awesome for our Havasupai trip. The thing holds roughly 6L. Bottles were good to have as nice lightweight stowaways. The nozzle did pop off and leak, as it's hard to see whether the bottle nozzle is fully closed or not under the plastic cap. But mostly user error on my behalf. Would recommend.

I just used this backpacking near Manistee River; we used it daily and we didn’t get sick. It was easy to use but I knocked it down 2 stars as it does not remove the taste of the tannins. I previously hiked this same location using a name brand pump style that was a pain to hand pump but produced good results and filtered the taste. If I didn’t have flavored electrolytes to add to the water, I don’t think I would be able to handle the taste longer than a day or so. If they make another brand with drip filter style that can filter out the tannin flavor, I would have gladly paid more. Avoid this model if the water source has tannins or other bad flavors in it.

Love this product. I recently bought it for my backcountry camping in Algonquin. Super easy to use, water comes out tasting just like water - no weird taste or chemical taste. I highly recommend. The only thing I wish it has was another bag to store the fresh clean water. Hard to only have the water come out as is instead of leave it to filter in a bag ready to drink. It comes with a little water bottle but it only attached to the filter. I ended up buying a water storage bag with a spout and it was perfect

Arrived as expected and in prestine state. Haven't tested the filter yet though

I bought this for a weekend camping trip, and it ended up being one of the most useful pieces of gear I packed. Instead of constantly pumping or filtering water bottle by bottle, I just filled the bag, hung it from a tree, and let gravity do the work while I took care of everything else around camp. The flow rate was better than I expected, and the whole setup was simple to use and easy to pack. It definitely made staying hydrated much more convenient. One thing I really like is that it also works with my LifeStraw filter, which gives me some extra flexibility since I already had one in my camping kit. It's nice knowing the components are compatible. Overall, it's lightweight, reliable, and takes a lot of the hassle out of filtering water outdoors. Whether you're camping, backpacking, or putting together an emergency kit, I think it's a great piece of gear to have.

Very good product

I only received the big blue bag and hose no filter and small bottle is delivered, very poor delivery...