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. Features FAST & SAFE FILTRATION:The 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.* SECURE GRIP:A flexible and structured grip makes it easy to hold the flask while screwing and unscrewing the filter. VEST PACK FIT:Soft material conforms to most hydration packs and larger vest pockets for a secure and stable fit. HIGH-FLOW:Easy to drink bite valve auto-seals after each sip, eliminating annoying drips. LARGE OPENING:42mm opening lets you fill the flask easily at any water source. COMPRESSIBLE:Flexible design shrinks as you drink, minimizing water movement. INCLUDED BACKFLUSH ADAPTER:Plugs into filter valve and threads onto a HydraPak Stow or bottle of clean water for backflushing the filter to restore its flow rate. *Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42. Specifications Weight: 36 g / 1.3 oz Dimensions: 42mm 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.
