Replacement Filter
"We ordered a replacement filter for our Lifestraw soft sided bottle. It arrived when expected in plenty of time for our upcoming trip."
The LifeStraw Peak Series – Membrane Replacement Filter is an ultralight, scientifically validated water filter designed for outdoor enthusiasts, travelers, and those preparing for emergencies. Compatible with the LifeStraw Peak Series collapsible squeeze and gravity systems, this microfilter physically removes bacteria (including E. coli), parasites (such as Giardia and Cryptosporidium), microplastics, silt, sand, and cloudiness, ensuring safe hydration from nearly any freshwater source. Each filter is independently tested to World Health Organization, US EPA, NSF, and Water Quality Association standards—so you can trust its performance wherever you go.
LifeStraw stands out for its field-proven reliability, standards-aligned testing, and embedded social impact—making this filter a trusted choice for those who expect both performance and purpose.
Frequently Asked QuestionsFor more reviews and real-world feedback, visit the product page.
Comparison & TestingLifeStraw 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: 4.7272725 / 5 from 22 reviews.
Review topics: ["quality","water","work","filter","pitcher","flow","bottle","peak series"].
"We ordered a replacement filter for our Lifestraw soft sided bottle. It arrived when expected in plenty of time for our upcoming trip."
"I bought these things in case the end of the world comes before the end of me. I think they are very expensive, yet I see no alternative. And that makes me sad. I would buy a bigger system from you, but I am on a fixed income. I see where my purchase gives a poor child in a foreign country a year of clean water and I wonder. . . . . . do you have a program like that for our own children here in the US? For kids in Appalachia, on the Reservations, in dilapidated city buildings with rusty pipes? I hope I never have to use these filters, but I now have them, just in case. Thank you for listening. . . . . ."
"Great bottle for backpacking"
"We are using these on a cruise to the Bahamas and then to Italy. We have not used them yet but have used other products. We expect them to work beautifully!"
"We use our Lifestraw to filter our spring water. It was a life saver when we went through Helene in the NC mountains where we live. I recommend the 8 Liter which is the one we use."
"Very compact and durable."
"Haven’t really used it since it was purchased for our emergency kit."
"I can only use filtered or boiled water. When I travel having a cup of tea is easy with the Peak filter. I can squeeze water thru the filter for tea or pour-over coffee and I am a happy traveler."
"This worked amazingly well. We hiked the Grand Canyon and used this in the Colorado River to refill our water. We also had the carbon filter attached and the water tasted great."
"the pitcher is a wonderful product.... have purchased them for my Illinois and Wisconsin homes. Have also leaned on my (adult) children to do the same for themselves. As well as for my health conscious Office Manager. I also purchased for my youngest son your 1L Peak Series Collapsible Squeeze: in 2 weeks he'll be backpacking in Yosemite, and it's the perfect solution to quickly being able to fill his personal Nagene bottle, and filtering water for cooking meals for 4; Sorry it took me as long as it did to find you."