Run fast, filter faster. The UltraFlask+ Filter Cap threads seamless onto all of HydraPak’s 42mm running flasks and handhelds for a lightweight, straightforward filtration solution. Featuring a traditional bite valve and cap design, runners can drink freshly filtered water directly through the high-flow Blaster valve. *Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42. Features FAST & SAFE FILTRATIONThe integrated filter removes Escherichia coli bacteria, Cryptosporidium parvum cysts, and Giardia Lamblia from approximately 1,500 liters of water at a rate of >1L per minute.* LIGHT AND COMPACTMinimal design and lightweight materials make this filter the ideal choice for runners. It takes up no extra space when stored or threaded directly onto a flask. 42MM THREAD COMPATIBLEEasily thread the filter onto some of the most popular running softflasks, flexible bottles and water storage containers. HIGH-FLOWEasy to drink bite valve auto-seals after each sip, eliminating annoying drips. INCLUDED BACKFLUSH ADAPTERPlugs into filter valve and threads onto a HydraPak Stow or bottle of clean water for backflushing the filter to restore its flow rate. Specs Weight 36 g / 1.3 oz Dimensions 42 mm Material ABS, POM, Silicone, Hollow Fiber Care Avoid freezing filter. Freezing may ruin the hollow fiber membrane. If in freezing conditions we recommend you keep the filter in your pocket or near your body to prevent freezing. F05
