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LifeStraw Peak Series Gravity Purifier — 8L hang bag with hose and inline purifier cartridge, a gravity water filter
Hiker in a canyon filling a bottle from the LifeStraw Peak Series Gravity Purifier bag hung from a fallen tree
Diagram: gravity water purifier removes 99.99% of viruses, bacteria, parasites and microplastics; lasts 18,000 L
Features infographic: 8L gravity water filter bag, virus-removing ultrafilter, 30L/h flow rate, BPA-free materials
Camper scooping river water into the LifeStraw Peak Series Gravity Purifier bag at the water's edge
Woman drinking water purified with the LifeStraw Peak Series Gravity Purifier while backpacking in a canyon
Close-up of the LifeStraw Peak Series Gravity Purifier cartridge dispensing clean water into a bottle
Comparison chart of LifeStraw high-capacity water purifiers: Escape, Max, Gravity Purifier and Community

LifeStraw Peak Series Gravity Purifier with virus removal

$189.95
REMOVES VIRUS, BACTERIA + PARASITES: the Ultrafilter Membrane protects against viruses (Rotavirus, Hepatitis A), Bacteria (including E.coli + Salmonella),  Parasites (including Giardia and Cryptosporidium), Microplastics, sand, dirt, and cloudiness  HIGH FLOW RATE: 30L/hr from gravity...
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This product filters

  • Virus
  • Cryptosporidium
  • Microplastics
  • E. Coli
  • Giardia
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  • REMOVES VIRUS, BACTERIA + PARASITES: the Ultrafilter Membrane protects against viruses (Rotavirus, Hepatitis A), Bacteria (including E.coli + Salmonella),  Parasites (including Giardia and Cryptosporidium), Microplastics, sand, dirt, and cloudiness 
  • HIGH FLOW RATE: 30L/hr from gravity – no pumping or external energy source required. 
  • LONG LASTING: The ultrafilter membrane has a lifetime capacity of 18,000 liters – about five years of safe drinking water for a family of five 
  • INCLUDES: 8L gravity bag with carry strap and carabiner, 1.2m hose, Ultrafilter membrane, adapter to enable direct filling of water bottles with 28mm standard threading, prefilter basket, leakproof cap and backwash syringe 
  • LifeStraw is proud to be a B Corp and Climate Neutral Certified brand,
  • For every purchase, a child in need receives safe drinking water for an entire year 
Dimensions
  • Hose Length: 1.2 m / 47.2 in
  • Weight (total system): 750g / 26.4oz
  • Height: 189.7cm / 74.7 in
  • Volume: 8L / 2.1 gal
LifeStraw Membrane Ultrafilter Protects Against:
  • 99.99% of viruses (Rotavirus, Hepatitis A)
  • 99.999999% Bacteria (including E.coli + Salmonella)
  • 99.999% Parasites (including Giardia and Cryptosporidium)
  • 99.999% Microplastics, sand, dirt, and cloudiness
  • Meets US EPA & NSF P231 drinking water standards for the removal of viruses, bacteria, and parasites
  • BPA Free, FDA approved, premium materials
  • Pore size: 0.02 micron
  • Free shipping on orders $75+ (US lower 48 only)
  • 45-day returns on unused items in original condition (US lower 48).
  • Free return shipping for eligible returns (US lower 48).
  • Not returnable: discounted/promo or bundle items, final-sale or limited editions, and products $300+ (defects covered by warranty).
  • Refunds issued 7–10 business days after inspection to your original payment method.
  • Bought elsewhere? Returns must go back to that retailer.


Original shipping, duties, and re-shipping for undeliverable packages aren’t refundable.

LifeStraw Peak Series Gravity Purifier with virus removal

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Independent Lab tested

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.

What gets filtered out

LifeStraw

OTHERS

Virus
Bacteria & Parasites
Microplastics

LifeStraw

Virus
Bacteria & Parasites
Microplastics

OTHERS

Virus
Bacteria & Parasites
Microplastics

Questions? we have you covered

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What others are saying

Overall rating: 4.75 / 5 from 32 reviews.

AI Generated Review Summary

The LifeStraw Peak Series Gravity Purifier provides clean water by removing viruses, bacteria, parasites, microplastics, sand, dirt, and cloudiness. It offers a high flow rate of 30L/hr without needing external energy. The ultrafilter membrane lasts for about five years for a family of five, and includes a carry strap, hose, and adapter for convenience.

Summary topics

  • Water Purification (55%): Many customers pointed out that this water purifier is the best ever and provides clean water no matter what.
  • Filter Effectiveness (23%): Many customers remarked that this water filter is super easy to use and effectively eliminates any water anxieties.

Review topics: ["packaging","water","quality","use","customer service","filter","system","bladder","purifier","website","bag","idea","works","unit"].

Review highlights

  • "Robust Construction And Fast Filtration" — Geohacker
  • "The water that came out was so refreshing and clean." — Mandy29
  • "Delivery was quick and the purifier was packaged well." — Andrew L.

Reviews

Life Saver

"When the pump broke on my island cabin, I was glad to have a large LIfeStraw Peak Gravity Series filter to make potable water for cooking and cleaning. Going down to the dock and bringing back water to the cabin was easy, and the filter worked flawlessly and quickly once it was filled. A video showing people how to pour water into the filter opening, with the rest of the bag supported by a large pot, would be helpful. It's a lot easer than moving it around under the water. I have a picture of this if you want to share it."

— Stephen L. (5/5)

Well built unit

"Up front, I have not used this unit yet. However I. A rate it on build quality. Unit is well built, bladders are covered in an abrasion resistant material unlike other units that are just plastic bags that are exposed to the elements. Hose, filter and connectors are all plug and play for ease of use"

— Charles N. (5/5)

Great for backcountry hunting

"We spent 2 weeks in the Frank Church Wilderness using this as our water filter. It's a great water filter and allowed us to stay at spike camps longer."

— Tom W. (5/5)

8l gravity bag

"This is very well designed. It worked great during a week long hunting trip."

— Paul L. (5/5)

"Haven't used it yet but very high in quality materials. Quite big in person. Definitely a bit over 2 gallon capacity. Will by another one soon."

— Charlene (5/5)

"Box came crushed, looks like it was used , came in a box semi assembled i don't even think the gravity filter is safe to use."

— Roi (3/5)

"Very rugged and easy to pack, cant wait to use it!"

— Seth (5/5)

Peasce of mind

"In the event of a power outage, our well would cease to function. Having a backup filtration source, such as the Lifestraw Peak Series Gravity bladder, provides peace of mind in the event that we need to use local river water for drinking."

— Jacque W. (5/5)

Best water purifier ever

"This is an amazing prauduct! You can get a lot of water really fast with this purifier! I love it!"

— Stephen C. (5/5)

Incredible quality - We are so pleased!

"We are thrilled with the products we purchased - the quality, ease in functionality, and peace of mind are next level!"

— Graysen W. (5/5)

Q&A

Can you also use this in your home kitchen? I have very limited counter space and am concerned with dripping with the refrigerator pitchers??
Great question. Yes, the LifeStraw Peak Gravity Purifier can definitely be used in your home kitchen. Many customers use it as a space-saving, high-capacity solution for everyday use, especially in small kitchens, cabins, or during emergencies. Here are a few things to consider: Space-saving design: It does not require electricity or plumbing and can be hung from a cabinet, hook, or stand to help keep counters clear. No dripping: The system only dispenses water when the hose valve is opened, so there is no risk of leaking like with some pitchers. Optional carbon filter: You can also purchase the LifeStraw carbon filter attachment to help improve taste and reduce odors, especially when using tap water. Large capacity: It is a great option for filtering water in batches and storing it in your fridge or reusable containers. If you are looking for a simple, low-maintenance option that fits your space, the Gravity Purifier may be a great fit.
Does this have a shelf life?
LifeStraw products do not have an expiration date or shelf life. If they are unused and/or still in packaging, you will store them as-is, in a cool, dry place. When you are ready to use them, you would follow the steps in the manual for priming and set up. Once used, you will want to follow the long-term storage directions to ensure it is ready for your next use.