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LifeStraw Flex Water Filter With Gravity Bag

Special Price €55.00 Regular Price €59.95
Including V.A.T.

Quick overview

The ultra-light 3.7L LifeStraw Flex Water Filter With Gravity Bag is the water filter when minimal weight is urgent. In total, the water filter weighs 196 grams and can be packed very compactly. With the water filter, you filter all bacteria, parasites, microplastics, and sand from a lake or stream. The water filter can filter 2000L of water before it needs to be replaced. Fill the water bag with water, then hang it up, open the cap of the water filter and the filter filters half a liter of water per minute so you can safely cook, drink or wash.


  • Protects against bacteria, parasites, microplastics, lead and other heavy metals, chemicals including chlorine, organic chemical matter like pesticides, and herbicides, dirt, sand, and cloudiness while removing odors to improve taste
  • Flow Rate: 0.125 gal/min| 0.5 L/min
  • Membrane Microfilter: Lasts up to 500 gal | 2,000 L
  • LifeStraw Activated Carbon + Ion Exchange Filter: Lasts up to 26 gal | 100 L
  • The filter will stop allowing water to flow through once it has reached the end of its lifetime
  • BPA Free materials
  • Replacement filters & parts
  • Includes: LifeStraw Flex filter, 1-gallon gravity bag, quick-connect hose, and backwashing syringe
  • Independently lab-tested, durable and BPA Free
  • Every fill avoids single-use plastic bottled water!
  • Meets US EPA & NSF P231 drinking water standards for the removal of bacteria and parasites


  • Filter Size: 6.4 x 1.5 in | 22.9 x 2.5 cm
  • Hose Length: 27.5 in | 70 cm
  • Gravity Bag Size: 18.7 x 10.6 in | 47.5 x 27 cm
  • Weight: 6.9 oz | 196 g 


  • 99.999999% of bacteria
  • 99.999% of parasites 
  • 99.999% of microplastics, silt, sand, and cloudiness 
  • Pore size: 0.2 micron  


At LifeStraw, we believe everyone deserves equitable access to safe drinking water. We design beautiful, simple, and functional products that provide the highest protection from unsafe water based on where and how they will be used. We also take our responsibility to people and the planet seriously. For every product sold, a child in need receives access to safe water for an entire year. We have been partners in the fight for the eradication of the Guinea worm for 25 years, and we actively respond to emergencies across the globe. We are Climate Neutral Certified B Corp and from product to packaging, we measure and minimize our environmental impact. We strive to support underrepresented communities through our actions, our products, our marketing, and our communications. We live, work, and create with impact in mind. We fight for good and always err on the side of action.