The LifeStraw Go can filter up to 4,000 liters (1,000 gallons). 

If you have the Stage Two bottle, the removable carbon capsule can filter 100 liters or 25 gallons before it needs to be replaced. 

Even if you used the LifeStraw Go every day, for all of your drinking water, it will last for almost four years. If you just use it for travel and outdoor activities, it will last much longer.

When the Go bottle has reached the end of it's filtration life, the flow rate will decrease and then stop pulling water through. You can increase the lifespan by cleaning the LifeStraw Go after each use. 

The great thing is, you can never drink contaminated water from a LifeStraw Go; when the water stops flowing through it, you know it is time for a new one!

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