UltraFlask+ Filter Cap

Features

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.

• 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.*
• Light and Compact — Minimal 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.
• High-Flow — Easy to drink bite valve auto-seals after each sip, eliminating annoying drips.
• 42mm Thread Compatible — Easily thread the filter onto some of the most popular running softflasks, flexible bottles and water storage containers.
• 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.