SKU Hydrapak F03 Material PP/POM, EPDM, Silicone, Hollow Fiber Weight 57g Dimensions Length: 129mm Diameter: 50mm Highlights Filter water on the go. The new 42MM Filter Cap threads seamlessly onto all sizes of HydraPak’s 42MM thread Seeker water storage bags and Flux flexible bottles morphing them into filtration solutions. The end result being lightweight filtration kits that can either be used to squeeze filtered potable water into other camp bottles and containers or to drink freshly filtered water from a Seeker or Flux. Both deliver fast and easy water treatment around camp or on the go. LIGHT & COMPACT - At only 57 grams, our filter is one of the lightest filter options available. Its small size takes up no extra space when stored or threaded directly onto a Seeker or Flux. DUST COVER & HIGH FLOW NOZZLE - Keeps dust off your drink nozzle. Quickly opens and closes the drink nozzle with one hand without any direct contact with dirty hands. 42MM THREAD COMPATIBLE - Easily thread the filter onto some of the most popular backpacking water storage bags and flexible bottles including the HydraPak Seeker 2L, 3L, 4L, and 6L and 1L and the Flux 750ML, 1L, and 1.5L FAST - Filters >1L per minute. SAFE - FIlter removes bacteria and protozoa from approximately 1,500 liters of water to help keep you hydrated and healthy, however remote your destination. SAFE & RELIABLE - 100% BPA and PVC Free