LifeStraw Peak Series Personal Straw - Mountain BlueDrink directly from lakes, rivers, and streams or fill a container to use your straw water filter on the go with protection against bacteria, parasites, microplastics, silt, sand, and cloudinessExtreme durability and light weight – premium materials make it tougher and ultra leak-proofUnlimited shelf life means no need to worry about how long it’s been in your emergency go-bag unusedHighly versatile - Can also be attached to most water bottles and to standard gravity hoses with removable threaded bottom capLong-lasting membrane microfilter will last up to 4,000 L (1,000 gallons) of water, that’s enough drinking water for one for over 5 years?Enhanced microfilter performance – our re-engineered filter helps reduce clogging from sand & silt for better flow rate over the long haulSpecifications:Weight: 65gDimensions: 3.2 x 19.5cmIncludes LifeStraw Peak Series personal water filter straw, user manualFilter specifications:Protects Against:99.999999% of bacteria 99.999% of parasites 99.999% of microplastics, silt, sand, and cloudiness Lasts up to 1,000 gal | 4,000 L (the filter will stop allowing water to flow through once it has reached the end of its lifetime!) Pore size: 0.2 micron