HydraPak Ultraflask 42mm Filter Cap

Overview

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.

Weight: 36 grams Features

- Easy to use
- High Flow
- Lightweight and Compact
- Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42. Technical Specs

- 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.