LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store
LifeStraw Flex with gravity bag - LifeStraw - Online store

LifeStraw Flex with gravity bag

NEW! LifeStraw Flex with Gravity Bag Multi-Function Water Filter - Removes Lead, Bacteria, Parasites and Chemicals is rated 4.9 out of 5 by 38.

Regular price $0.00 $54.95 Sale

LifeStraw Flex with gravity bag is a powerful 2-stage water filter that provides safe drinking water in any environment. It removes bacteria, parasites, and microplastics while reducing lead and chemicals. It can be used in 4 ways: with the included 1-gallon gravity bag, as a personal straw, attached to a hydration pack, or with a plastic water bottle.

It exceeds US EPA and NSF standards for safe drinking water. The hollow fiber membrane is good for 2,000 liters (500 gal), while the replaceable carbon filter lasts 100 liters (25 gal).



  • Hollow fiber membrane: 0.2 micron pore size. Removes 99.999999% of bacteria, 99.999% of protozoa, and 99.999% of microplastics
  • Carbon fiber capsule: Improves taste while reducing lead, other heavy metals, chlorine and organic chemical matter (Pesticides, Herbicides, VOC).
  • Also removes turbidity (silt, sand, cloudiness)
  • Exceeds US EPA drinking water standards for bacteria and parasites
  • Exceeds NSF 42 standard for chlorine reduction
  • Exceeds NSF 53 standard for reduction of lead and other heavy metals
  • Longevity/Lifetime: 2,000 liters/500 gallons (hollow fiber membrane) 100 liters/26.4 gallons (replaceable carbon capsule)


  • Compact, easy to use and carry
  • Caps are dishwasher safe
  • Recyclable
  • Filter Size: 6.24 x 1.5 in
  • Filter Weight: 2.0 oz
  • Gravity Bag Volume: 1 gallon / 3.7 liters
  • Gravity Bag & Hose Weight: 5.3 ounces
  • Gravity Bag Material: Nylon fabric with TPU lining
  • Kit Includes: LifeStraw Flex filter with carbon capsule, 1 gallon / 3.7 liter gravity bag w/ quick connect hose and backwashing syringe


Rated 5 out of 5 by from Life Saver I really wanted to test this product out in the woods. A weekend trip into the wild gave the me the opportunity to try the LifeStraw in all modes. As a purifying straw it fit on several different water bottle brands. As gravity Bag, it held water with no leaks and provided a steady flow of water. And in a moment of bravery, because you have to a good reviewer, I tried water from a clean flowing source. Seeing as how I yet to have been crippled by parasites and bacteria I have to give the LifeStraw a 5+ star rating. My brother who is an advid outdoorsman has been eyeballing the blue beauty since I opened the box. Maybe I'll let him use it on his next hunting trip.
Date published: 2018-11-09
Rated 5 out of 5 by from A load of my mind and back. I see the LifeStraw Flex with gravity bag as a valuable tool to have during emergency situations, travel or camping. It's such a small and lightweight design that easily packs away. Knowing you have up to 500 gallons of clean water (If you bring extra carbon filters) in your bag is a load off your mind and back. The 1-gallon bag is waterproof with a roll-top clip closure, strap to suspend the bag in the air. The bags nozzle locks in the tube to connect to the straw. It seems sturdy and protected and I see no reason it wouldn't double as a great dry bag.
Date published: 2018-10-28
Rated 5 out of 5 by from Good to have for a go bag I received this free as a sample. I know that lifestraw is a good brand for water filtration of any sort of water. This item here with the bag to help filter more water and to make it easier to fill bottles is a good idea. I find that the bag it self needs a seperate clamp form the one that u fold down and clamp as the bag does open a bit. There are also no extra filters with this and i think that there should be at least 1 extra filter as 1 of the filters only lasts for 25 gallons. The instructions could be a bit more simple. As to whether this filters water i find that it does as it says it does.
Date published: 2018-10-23
Rated 5 out of 5 by from The lifestraw is a lifesaver I'm so excited to he giving LifeStraw a multi-use water filter gravity bag a try. It performed wonderfully used it with river water and it filtered wonderfully the water tasted very clean and clear. It works great for a family with a one gallon capacity. #freesample
Date published: 2018-10-19
Rated 5 out of 5 by from Great To Have This is a really cool product, and a really great one to have around. I like that it is versatile and packable. The LifeStraw part can be used by itself as a straw or attached to the gravity bag. It is lightweight and fits easily into a bag. Now that I have it, I wouldn't go camping without it. It can make terrible water taste great. You don't have to worry about getting sick from the water if you have this. I think that everyone should keep these around. They're perfect for an emergency kit. You never know where you'll end up. but one thing I know is that you will always need clean water to survive. This product is invaluable for that. I'd especially recommend it to campers and travelers, but I'd really recommend it to anyone. It's great!
Date published: 2018-10-23
Rated 4 out of 5 by from Great for camping I just received this water bag just before a hunting. It works great. It holds a gallon of water and you can put a filter on it to filter out bacteria. This is a great tool for camping,Hiking or to put in a emergency bag. I would recommend this bag for any outdoodsmen.
Date published: 2018-10-26
Rated 5 out of 5 by from Amazing water filter! I received this product in a very timely manner. It has a 1 gallon bag that you can put any water in and the gravity of the bag filters the water down the straw. It is very convenient and very easy to use. You can bring it camping or out on a hike and not have to worry about water because you can grab any water available and know it’s safe to drink because of the filter system. We brought it camping and used water from the campground and it tasted amazing. We are very happy with the bag and filter.
Date published: 2018-10-24
Rated 5 out of 5 by from Easy to use, works excellent! I got this a week ago to try and honestly this is amazing. I camp quite a bit and sometimes good water is hard to come by. Tried this over the weekend and was able to drink some water that had been sitting for quite some time. I mean it doesn’t taste like bottled water when using but it does make it taste like good tap water. This product will now go in the boat, the camping equipment, and any other place I can find! Definitely recommend to anyone who spends a lot of time outdoors!
Date published: 2018-10-30
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For this product LifeStraw flex gravity bag mulit-function water filter, how can you be sure it is time to replace the filter for this filter bag that carries a gallon at a time? Since it can filter 500 gallons is there a indicator of some sort?

Asked by: JudyCee
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