The LifeStraw Peak Series 3-in-1 Kit is a high-protection, modular water filtration system engineered for those who demand safe drinking water anywhere—on the trail, while traveling, or in emergencies. This kit is rigorously tested and trusted in the field, functioning as a straw, a squeeze bottle, or a gravity system. Its 0.2-micron membrane microfilter removes 99.999999% of bacteria (including E. coli), 99.999% of parasites (such as Giardia and Cryptosporidium), and 99.999% of microplastics, silt, sand, and cloudiness. All components are made from BPA-free, FDA-approved materials and meet or exceed US EPA and NSF P231 standards.
The kit includes the ultralight Peak Series Solo Water Filter (up to 500 gallons/2,000 liters), a 650mL collapsible squeeze bottle, a 3L gravity bag with hose, and essential accessories like a backwash syringe for easy cleaning. With its modular design, you can adapt to any environment—drink directly from a water source, refill containers, or set up camp filtration.
Every purchase delivers impact: For each LifeStraw product sold, a child in need receives safe water for a year through the brand’s Give Back program, making your purchase part of a measurable, equitable solution to global water access.
Equip yourself for any adventure or emergency with the LifeStraw Peak Series 3-in-1 Kit. Every purchase delivers safe water to a child in need for a year. Shop now.
LifeStraw products have a history of use in some of the harshest conditions around the world, from refugee camps to natural disasters to extreme back-country, our products have to work because lives depend on them. Our testing and transparency is unparalleled and we use the most trusted performance criteria based on protocols established by the World Health Organization, the US EPA, NSF International and the Water Quality Association.
Overall rating: 4.9411764 / 5 from 17 reviews.
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"This works!!! I can't believe my eyes when I saw that clear water going through the system and out the cup! Makes me feel confident to drink from this in case we run out of water. I drank from the obviously dirty fountain I have I mean birds go in it and it's exposed to so much bacteria. Very easy to put together and feels heavy duty. I did smell like a chemical but nothing that will derail from using this!! Super happy and thank you."
"This is a really neat and versatile set. It's nice for holding water even if you don't need to filter. It filters surprisingly fast and the water is clean and good. I do recommend figuring out how everything attaches before you actually need to use it because some of it didn't seem obvious to me and the instructions weren't super clear. Everything feels really well made and durable. Always impressed with Lifestraw products!"
"Incredibly easy to use all components of the kit, and the design is functional across the board. Pretty amazing to have the ability to store a good amount of purified water in a hang bag, and take the filtration system out and about for on the go hydration while hiking away from base. Materials are high quality and durable, easy as pie to assemble. 5/5 stars."
"Assembly was easy to use, lightweight, comfortable to use, the design is nice and came with a few extra components to use as a larger bag, straw, two bags total. Water taste good. Love it."
"I love being outdoors- whether it's hiking, camping, travelling, or exploring new trails - and this LifeStraw set is honestly amazing. It's so easy to use and gives you clean, fresh-tasting water with no weird taste at all. The large reservoir is perfect for camping because you can filter enough water for both drinking and cooking. I think it's a must have for long hikes, remote trails, road trips, and emergency preparedness. Knowing you can turn water from natural sources into safe drinking water gives you so much peace of mind. After trying it myself, I’m already planning to order a few more as gifts for my family and friends who love outdoor adventures as much as I do. Highly recommend this!"
"I was very impressed with the LifeStraw Peak Series 3-in-1 Kit. This water filtration system worked perfectly!!! And, it was much better than my old hand pump. The Peak Series Kit is very lightweight and easy to use. The filter is remarkably lightweight and compact, which is perfect for backpacking. The kit comes with 2 water containers. The smaller container is designed for quick refills by squeezing water through the filter. The larger bag can either be used to drip filter or squeeze filter 2L at a time. Additionally, the filter can screw securely onto other water bottles. Our camp had multiple filtration devices and everyone wanted to use the LifeStraw Peak Series 3-in-1 Kit because it was faster and easier to use. Additionally, it was easier to filter away from our water source. Back home everything cleaned up easily. The instructions on the box were easy to follow."
"I absolutely love this as someone who loves to hike . The personal straw can be attached to your hiking bag for in the go and can be attached to any water bottle. The gravity bag is easy to use and attach to the filter and filters nicely into the bottle and holds a lot of your getting water for several people The water flows nicely and is actually pretty fun to watch."
"The LifeStraw Peak Series has been such a great addition for camping, travel, and emergency prep. It's lightweight, easy to pack, and feels really durable. I love how simple it is to use and that it gives peace of mind knowing I can safely filter water almost anywhere. I also love the larger capacity options. The flow rate is surprisingly good, and the water tastes clean and fresh without any weird aftertaste. It's one of those products that's practical, reliable, and easy to keep on hand whether you're outdoors or just want something for emergencies. Definitely worth having!"
"The lifestraw works great at filtering the water. We did struggle getting all pieces to connect so we're unable to properly connect and test it. We did fill the pouch with creek water and drink directly from it with the straw connected and the water was amazing."
"This Lifestraw Peak series 3 in 1 kit water filtration kit is truly excellent and highly effective at transforming lake and well water into pure, clean drinking water. It features a highly practical and user friendly design, comprising a gravity bag capable of holding up to 3 liters of water for treatment, a filter that eliminates 99% of bacteria to produce filtered water, a connecting hose, and a squeeze bag."
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