LifeStraw Peak 8L Gravity Filter System - The high-capacity system made with high-performance materials designed for long term durability to meet your water filtration and water storage needs. The large cap allows easy filling, cleaning, and leak-proof mobility, with an included smaller plug cap to seal off connection for water storage. The optimized filtration cartridge boasts a high flow rate and ability to remove sand and silt without clogging. It’s the only system needed for you and the whole crew as long as you’re on your adventure. Enhanced microfilter performance: Our re-engineered membrane and custom backwash accessory means better performance against sand and silt, maintaining great flow over the long haul. Features The best in dromedary meets the best in water filtration performance: high-capacity basecamp filtration for the whole crew Protects against bacteria, parasites, microplastics, silt, sand, and cloudiness Great for large groups, basecamp, and RV or van travel – easy to hang from a tree or RV for quick hydration Extreme durability: made with premium materials resistant to punctures and rips during your travels Highly versatile: can remove the filter from the gravity bag an duse it as a straw on the go or with a water bottle Membrane microfilter lasts up to 2,000 L (500 gallons)