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LifeStraw Flex Advanced Water Filter with Gravity Bag - Removes Lead, Bacteria, Parasites and Chemicals Blue, 1 gal

  • Based on 2,528 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 24
Order within 2 hours and 15 minutes
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Features

  • Protects against 99.999999% of bacteria (including E.coli, Salmonella); 99.999% of parasites (including Giardia and Cryptosporidium); 99.999% of microplastics, heavy metals, like lead, chlorine, organic chemical matter, silt, sand, and cloudiness; improves taste
  • Versatile water filter system, can be used 4 ways: 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 ultralight, the gravity water filtration system weighs 6.9 oz (196 g) and can filter a gallon of water in less than 10 minutes
  • Long-lasting membrane microfilter lasts up to 500 gallons (2,000 L); replaceable activated carbon + ion exchange filter lasts up to 26 gallons (100 L)
  • This product gives back: one purchase, one child, one year of safe water
  • LifeStraw is proud to a B Corp and Climate Neutral Certified brand, committed to meeting the highest standards of verified social and environmental performance, transparency and accountability

Description

Maximize protection and water throughput with this ultralight, compact gravity water filter system built to provide safe drinking water in almost any environment. The LifeStraw Flex with gravity bag offers advanced filtration for protection against bacteria, parasites, and microplastics in addition to lead, chlorine and other contaminants including sand, silt, and cloudiness. The gravity bag features a leak-proof hose connector and a convenient shoulder strap for easy transport and flexibility to hang virtually anywhere. It is also compact and portable, making it ideal for hiking, camping, and survival. Your purchase has impact. For every LifeStraw product purchased, a school child in need receives safe water for an entire school year.


Brand: ‎LifeStraw


Color: ‎Blue


Special Feature: ‎Protects against 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), 99.999% of microplastics, lead and other heavy metals, chlorine, organic chemical matter, dirt, sand, and cloudiness; improves taste


Material: ‎Plastic


Capacity: ‎3.7 Liters


Included Components: ‎1 LifeStraw Flex Filter, 1 Gravity Bag, 1 Hose, 1 User Manual


Product Dimensions: ‎11"L x 3"W x 5.5"H


Purification Method: ‎Hollow Fiber Membrane


Power Source: ‎No Electricity Or Battery Power Required


Item Weight: ‎6.9 Ounces


Model Name: ‎Flex Gravity


Lower Temperature Rating: ‎1 Degrees Celsius


Maximum Flow Rate: ‎0.5 Liters Per Minute


Upper Temperature Rating: ‎60 Degrees Celsius


Item Package Dimensions L x W x H: ‎13.62 x 5.35 x 2.05 inches


Package Weight: ‎0.34 Kilograms


Item Dimensions LxWxH: ‎11 x 3 x 5.5 inches


Brand Name: ‎LifeStraw


Warranty Description: ‎1 Year


Suggested Users: ‎Unisex-adult


Number of Items: ‎1


Manufacturer: ‎Lifestraw


Part Number: ‎LSFX01GB01


Style: ‎Gravity Bag


Size: ‎1 gal


Date First Available: October 6, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Functionality
Sons used these on their most recent hike/stay up north and said they worked perfectly well. No weird taste. Water was very clear.
Reviewed in the United States on November 14, 2022 by Rachel Hughes

  • Saved us during the great blackout
When the power grid went down in Texas during the big snowstorm, in our area the water became completely undrinkable for 2 weeks while they desperately trying to keep everyone warm. We were the only ones for miles who had clean water.
Reviewed in the United States on September 28, 2022 by Stephanie

  • Would recommend
Used for a week at a lake, only drank water filtered from lake and never felt sick. Didn’t have any strange taste either. The drip was slow at first before I realize you can sick the air bubbles out and the stream will go much faster. I’d recommend bringing a jug to let the water filter into then fill water bottles from that. Slow or not it’s great for a passive water supply! ... show more
Reviewed in the United States on August 23, 2022 by Sumoco

  • Must have!
Bought this to take camping to have fresh water. Everyone with me didn’t believe it would really be clean safe water to drink taking it straight from the lake we were at. To everyone’s surprise it was clean and tasted great! Absolutely impressed with this product and it made the best coffee while out camping! Thanks for such a wonderful product! Life straw is the way to go for any emergency bag, or survival bag, camping trip! ... show more
Reviewed in the United States on August 9, 2022 by Willow

  • The syringe is the weakest link!
Used it on my secong backpcking trip and the syringe is already broken ! The syringe is helpful to remove air bubbles faster. At lifestraw website, syringe is $1, shipping is whoppinv $12 ! Might as well buy some other filters. Now without the syringe, need to find another way.
Reviewed in the United States on August 9, 2022 by Anonymous

  • Good product
Seems well made. Have not used yet.
Reviewed in the United States on September 8, 2022 by Kindle Customer

  • Did a good job
This worked very well at the lake I visited. Just don't make my mistake and set it on your bed roll.
Reviewed in the United States on May 26, 2022 by Valon

  • Perfect for Backpacking
We loved having this on our family backpacking trip. It was easy to fill and so convenient having it in our camp.
Reviewed in the United States on August 2, 2022 by Hubbamyers

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