LifeStraw Peak Series Gravity Water Filter System With Safe Water Storage - Let gravity filter your water with LifeStraw's Gravity Water Filter System. This system has two bags. One is for the dirty water that will be filtered and the other bag will carry the filtered water for you to drink later. Features Protects against bacteria, parasites & microplastics Enhanced microfilter performance Extreme durability Highly Versatile with added storage for safe water Independently lab tested, durable and BPA Free Every fill avoids single use plastic bottled water! Kills 99.999999% of bacteria Kills 99.999% of parasites Filters 99.999% of microplastics, silt, sand, and cloudiness Lasts up to 500 gal | 2,000 L Includes - LifeStraw Peak Series 8L gravity bag with hose and standard quick connector, carabiner, leak-proof cap for water storage, easy carry strap, backwash accessory, and user manual.