LifeStraw Peak Series Gravity Purifier - 8 Liters
A portable, high-capacity system that is great for groups, the 8-liter LifeStraw Peak Series Gravity Purifier removes viruses, bacteria, parasites and microplastics from drinking water.




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- Compact size makes it ideal for emergency preparedness and survival situations as well as camping, outdoor adventures and international travel
- 8-liter bag is constructed of premium materials, including 840-denier, double-TPU-laminated, nylon-reinforced fabric that is resistant to punctures and rips
- Simple on/off twist mechanism allows for easy start-up and enables you to stop the flow of water without a pinch clip
- Ultrafilter membrane protects against 99.99% of viruses (including rotavirus and hepatitis A) and 99.999999% of bacteria (including E.coli and salmonella)
- Membrane also protects against 99.999% of parasites (including giardia and cryptosporidium), 99.999% of microplastics, sand, dirt and cloudiness
- Ultrafilter membrane has a lifetime capacity of 18,000 liters, or about 5 years of safe drinking water for a family of 5
- High flow rate of 30 liters per hour from gravity; no pumping or external energy source required
- Carabiner makes it simple to secure or clip to other loops on the bag for easy hanging or transportation
- Pore size: 0.02 microns
- Total system weight: 1 lb. 10.4 oz. (750 g)
- Kit includes an 8-liter gravity bag with carry strap and carabiner, 47.2 in. (1.2 m) hose, ultrafilter membrane, prefilter basket, leakproof cap and backwash syringe
- Also includes an adapter to enable direct filling of water bottles with 28 mm standard threading
- Meets U.S. EPA and NSF P231 drinking water standards for the removal of viruses, bacteria and parasites
- LifeStraw is a B Corp brand, committed to meeting the highest standards of social and environmental performance, transparency and accountability
- For every LifeStraw product purchased, a child in need receives safe water for an entire school year
Imported.
View the LifeStraw Peak Series Product LineView all LifeStraw Gravity Water PurifiersBest Use | Camping Travel Emergency Preparedness |
---|---|
Filter Type | Gravity |
Removes/Destroys | Protozoa, Bacteria And Viruses |
Output | 0.5 liters per minute |
BPA Free | Yes |
Field Cleanable | Yes |
Dimensions | 23.5 x 14 inches |
Rechargeability | Non-rechargeable |
Weight | 1 lb. 10.4 oz. |
Sustainability | From a Climate Neutral Certified brand |
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Perfect for Camping!!!!
[This review was collected as part of a promotion.] LifeStraw Peak Gravity Water Purifier System with Virus Removal is perfect for the property that we just purchased that has a pond and stream for water access. We camp and hike a lot on the property and this system will come in very handy to provide us with clean bacteria free water!
This gravity filter has many flaws
I have owned several different gravity water filters and this is by far the worst. It has so many flaws. First, the filter clogged on the 3rd use and despite efforts to use the syringe to clean it, it was unworkable. Not great on 1st day to backpack trip. Second, it's hard to fill through the opening (relatively minor inconvenience). Third, because the opening is also the filter connection, it forms a vacuum as it drains and you can't allow air to get in further slowing the flow. There are many other gravity filter options that perform better.
Easy to Pack into Hiking Gear
[This review was collected as part of a promotion.] I've enjoyed using LifeStraw individual water filters for hiking trips and emergencies. Now I am excited to have used and will be prepared for more trips and/or emergencies with the Gravity system. LifeStraw has made it easy to pack this system into hiking gear, as the bladder rolls up fairly thinly, and the hose takes up minimal space in a backpack. Getting adept at using for the first time took some effort, so I highly recommend practicing at home for the first time before getting out into the wild after a long hike and trying to set up camp while figuring out the system. It is not difficult, but nice to know what should be done. The bladder fills easily by unscrewing the cap over the filter and submerging the whole thing into a nearby stream or lake. Then the water can be used by the whole camp and even has a water bottle attachment, which comes in handy. Love this LifeStraw system.
Review as a Travel Filter
I have been using this in Mexico since tap water here is not potable. I think it does take a little bit to learn how to use it, but once you get the hang of it, its fine. The tube is a bit long, you need a branch or hook about 6-7 feet off the ground in order for it to work properly. Lastly, the first liter of water every time I filter always has an off taste, like a plasticly taste, but I usually just dump it out and then drink the last 7 liters from the filter. I filter it all at once, but if you are only filtering it when you need it, the bad taste may show up. I am happy with my purchase, but I do not think I would recommend it to the average person in my situation. I am happy to report that I have not been sick at all from drinking the water though.
So slow.
I was stoked to get this filter for traveling in South America. However I was blown away with how slow it was to get a liter. Maybe I was doing something wrong but it seems straight forward and the directions are easy. That said I can’t say I would recommend it to anyone. It also is quite bulky and difficult to drain all the water entirely out of when packing up camp. The filter technology is great I’m sure, but you might die of dehydration water for water, Especially if you have to use it in a spot where the hang isn’t fully perfect. I would recommend a pump system.
Outstanding
As an overlander in a capable vehicle, I frequently find myself for many days in areas where potable water is unavailable. This filter virtually eliminates any water anxieties as long as some body of water is nearby, an eventuality for which one can normally plan. It is constructed extremely well, I can carry it to and from the water source over my shoulder with the strap, thus permitting me to carry a second bladder of raw water to filter back at camp after the first one finishes. If you’re a backpacker, this might not be your ideal option because of its size unless you’re with a group, but for my purposes, I frankly wouldn’t consider any substitute. This filter it’s fast, effective, and tough as nails. Thanks for an excellent product.
Compact
[This review was collected as part of a promotion.] I recently had taken a hiking trip, and we weren't able to take pre-bottled water. Let me tell you that might have been the hardest part knowing I couldn't take them. But after trying this at home and feeling confident that I could survive with only using the LifeStraw Gravity Water Pack. Well here I am 3 weeks after the trip and I am still alive. The water tasted just as good as bottle water. Maybe even better. So if you are going on any kind of camping, or hiking adventure and need fresh water than this is what you need.
Very Useful!
[This review was collected as part of a promotion.] This water filtration system works by gravity. I did not have to do any pumping or need to use batteries. I love that it is so low effort. Not only does it remove viruses, bacteria, and parasites. It makes the water taste better. This is great for camping and whatever outdoor adventures that you want to pursue. This water purification system will be vital for emergency preparedness and survival situations. I sleep better at night knowing that I have it for whatever comes my way.
Leaked horribly
[This review was collected as part of a promotion.] This is the coolest idea you pour water into the bladder portion and it drains the water over a filter and you drink clean water through the straw. It is extremely portable and is a life saver for hiking,camping, survival,etc. It really is a cool idea but mine leaked horribly when I poured the water into the bladder part to the point I couldn't even use it.i really wanted to love it but when it leaked so bad it was unusable it was a nogo for me.
Robust Construction And Fast Filtration
This thing works great. Not only does it filter quickly but it's built stronger than the other gravity bag filters while being versatile in use. You can fill it easily then transport a full bag without a sweat, plus it hangs from strong connections and the filter back flushes to extend it's life AND it can kill viruses. We filtered over 30 gallons of cistern and hydrant water ( nasty stuff ) and it never slowed down. Hang it so the tip of the hose extends all the way to a few feet off the ground and the pull of the water speeds the flow rate. It actually makes the water taste great making for better coffee. It rolls up neatly and stows in a ruck without fear of being torn or cut. While not a light weight it can serve 5 or so people quickly making up for hefty construction. It's going to get a work out this summer but I think it will come through without a hitch.