The LifeStraw Family can filter up to 18,000 liters or 4,755 gallons of water. 

When the Family 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 Family after each use (see cleaning instructions for pre-filter cleaning and back-washing the purification membrane).

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