LifeStraw Flex Water Filter with Gravity Bag
LifeStraw Flex Water Filter with Gravity Bag
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LifeStraw

LifeStraw Flex Water Filter with Gravity Bag

4.4 stars out of 171 reviews
(4.4)|
171 ratings
LifeStraw Flex Water Filter with Gravity BagLifeStraw Flex Water Filter with Gravity Bag
Pack Size:Single

Key item features

  • Advanced Protection: Protects against 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), and 99.999% of microplastics
  • Versatile Usage: Can be used as a personal straw filter, with the included gravity bag, as an in-line filter with most hydration packs, or attached to most disposable water bottles
  • Compact and Lightweight: Weighs only 6.9 oz and can filter a gallon of water in less than 10 minutes
  • Long-lasting Filters: Membrane microfilter lasts up to 500 gallons; replaceable activated carbon + ion exchange filter lasts up to 26 gallons
  • Improves Taste: Removes heavy metals like lead, chlorine, organic chemical matter, silt, sand, and cloudiness
  • Convenient Design: Features a leak-proof hose connector and a shoulder strap for easy transport and flexibility to hang virtually anywhere
  • Impactful Purchase: For every LifeStraw product purchased, a school child in need receives safe water for an entire school year
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Current price is $49.9483.2 ¢/ea
Price when purchased online
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  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $49.94
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $49.94

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Comparison Overview:
Product

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LifeStraw Flex Water Filter with Gravity Bag
LifeStraw Flex Water Filter with Gravity Bag
current price $49.94
LifeStraw Flex Water Filter with Gravity Bag
4.4 out of 5 Stars. 171 reviews
Lifestraw Personal Water Filter for Travel, Hiking, Camping and Survival - Blue
Lifestraw Personal Water Filter for Travel, Hiking, Camping and Survival - Blue
current price Now $15.99, Was $19.00
Lifestraw Personal Water Filter for Travel, Hiking, Camping and Survival - Blue
4.4 out of 5 Stars. 560 reviews
Comparison Chart:
MaterialTPU Laminated NylonLifeStraw Flex Water Filter with Gravity Bag-Lifestraw Personal Water Filter for Travel, Hiking, Camping and Survival - Blue
Weight0.43 lbLifeStraw Flex Water Filter with Gravity Bag0.5 lbLifestraw Personal Water Filter for Travel, Hiking, Camping and Survival - Blue
Height18.7 inLifeStraw Flex Water Filter with Gravity Bag2 inLifestraw Personal Water Filter for Travel, Hiking, Camping and Survival - Blue
ActivityCampingLifeStraw Flex Water Filter with Gravity BagHikingLifestraw Personal Water Filter for Travel, Hiking, Camping and Survival - Blue
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Customer ratings & reviews

4.4 out of 5 stars
stars171 ratings151 reviews
How item rating is calculated
  1. 5 stars71% (121)
  2. 4 stars16% (28)
  3. 3 stars4% (7)
  4. 2 stars2% (4)
  5. 1 star6% (11)

Reviews summary

Pros
  • : Suitable for outdoor activities and emergency situations.
  • : Allows direct drinking from straw or filling a container.
  • : Water filtered through this product has a clean quality.
  • : Accommodates various water sources and uses.
  • : Holds 1l of liquid.
Cons
  • : Some users experience leakage issues with the quick release or bag.
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Showing 1-3 of 151 reviews

Apr 8, 2025
Walmart customer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Delivery

What I love about Walmart is their fantastic super fast delivery service!👍

Helpful?41W9SDD6RA7T497255370
Dec 17, 2025
WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Looks good, purchased for gift, so really don't know a lot about it.

Incentivized Review
Helpful?41W9SDD6RA7T497255370
Aug 19, 2019
Walmart customer
5 out of 5 stars review

Seller Verified Purchase

Best Choice!

We recently started backpacking and so have been gathering supplies. I did lots of research and ended up purchasing the LifeStraw Flex with gravity bag. We used this on our first overnighter and couldn't have been happier with it! The bag opens easily and wide for ease of filling from water source. We just hung it on a tree and in seconds our water bottles were filling up with good clean water. Highly recommend.

Review from lifestraw.com
Helpful?41W9SDD6RA7T497255370