






Filter by gravity -
The Flex Gravity Bag Peak Serie 3L Mountain Blue from the brand LifeStraw is a water supply reservoir that filters water by gravity.
This gravity filtration system uses a 0.2 micron particle filter that will remove 99.999% of bacteria, parasites, microplastics, silt particles, sand, and other impurities so you can have healthy, drinkable water. Moreover, this optimised filtration kit ensures a high flow rate and removes dirt without ever clogging.
Weighing only 228 g, the Flex Gravity Bag Peak Serie 3L is durable, versatile, waterproof, and easy to carry. Additionally, this reservoir leaves no aftertaste. Finally, the materials used in the design of this product are free of BPA and chemicals and comply with FDA (Food and Drug Administration) standards.
So, if you plan to go camping or hiking, the Flex Gravity Bag Peak Serie 3L will be the ideal solution to filter water from streams along your route!
PLEASE NOTE: this product requires no electricity, batteries, or power source.


- High filtration flow rate
- Easy-to-clean pre-filter and filtration cartridge
- Compact and compressible reservoir
- No aftertaste (LifeStraw uses neither iodine nor iodinated resin particles)
- Chemical-free, BPA-free
- Compliant with United States Food and Drug Administration (FDA) standards
- Compliant with US EPA and NSF P231 drinking water standards for removal of bacteria and parasites
Filter actions:
- Reduces water turbidity
- Eliminates 99.999% of bacteria, parasites, microplastics, silt, sand particles, and other impurities
Lifespan: 2000 litres
Filter pore size: 0.2 microns
Dimensions: 22 x 52.9 cm
Tube length: 1.20 m
Included in the kit:
- Flex Gravity Bag Peak Serie 3L
- Tube
- Standard quick connector
- (Carabiner) clip
- Waterproof cap for water storage
- Easy carrying strap
- Backflush cleaning accessory
- User manual