HydraPak UltraFlask+ Filter Cap

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. FILTER FACT SHEET | FILTER USER MANUAL *Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42. Beyond Lifetime Guarantee Easy To Use High Flow Lightweight And Compact Running Weight 36 g / 1.3 oz Dimensions  42mm