LifeStraw Peak Series Gravity 3L
LifeStraw
3 L gravity filter rated for 500 gallons with a filter that doubles as a straw.
LifeStraw Peak Series Gravity 3L costs $65.95 in LifeStraw's own US store, checked on October 6, 2026.
Where to buy in
Price in the maker's own store, checked October 6, 2026. Amazon prices change often, so we link without a price.
What you get
A 3 L bag that filters by gravity while you do something else. The filter pulls out for straw or bottle use. The maker lists bacteria, parasites and microplastics and states that viruses are not removed.
- Filter removable for straw/bottle use
- Also 8L ($95.95) and 8L+8L ($149.95)
Pros and cons of the LifeStraw Peak Series Gravity 3L
Pros
- Hands-free filtering for 3 L at a time.
- Filter removable for use as a straw or in a bottle.
- Picked by OutdoorGearLab and Outdoor Life.
Cons
- Viruses are not on the removal list so it covers bacteria and parasites only.
Specs
- Type
- gravity filter
- Filter lifemaker's rating
- 2,000 L (500 gal)
- Removes
- bacteria, parasites, microplastics, silt; not viruses
- Capacity
- 3 L
Why it scores 8.5
8.5/10
Shortlist score. How it is calculated
Emergency features
- Removes bacteria and protozoa
- Also removes or kills viruses
- Filter life or capacity listed by the maker
- Tested to a named standard
- Works without power
Tester picks
- OutdoorGearLab
- Outdoor Life
Search demand
Number 18 of 20 on this shortlist for Google searches by model name.
More water filters
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Sources
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