UltraFlask+ 500ml Filter Kit: Shop Now for Clean Water and Outdoor Adventures

Hydrate Harder: UltraFlask+ 500ml Filter Kit Ready to Conquer Trails!

Get ready to unleash your inner rebel with this one-of-a-kind piece Its got a vibe that screams "I do what I want" and a style that's straight-up iconic Think rock 'n' roll meets effortless cool You'll be turning heads and making statements from the moment you put it on Trust me its a game changer

$33.98 $67.95

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Lighten your load and drink right from the source. We took our go-to flask and added filtration to create a system that delivers hydration without contamination. The filter — light and compact — screws on top so you can drink right from the flask. Or — if you’re carrying more water — use the system to fill a bottle or reservoir.

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

Capacity: 500 ml / 17 fl oz
Weight: 65 g / 2.3 oz
Dimensions: 240 mm x 70 mm / 9.4 in x 2.8 in
Material: TPU, Silicone POM, Hollow Fiber, ABS
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.