HydraPak Ultraflask 42mm Filter Cap bis_hidden Blanket or bag

Blanket or bag

Back Pad 100% Polyester (recycled)

5g -Sugars 4

Easily thread the filter onto some of the most popular backpacking bottles and flasks including the HydraPak Stow 500ML and 1L and the 1L Smart Water Bottle

HydraPak Ultraflask 42mm Filter Cap bis_hidden Blanket or bagFiltration For Runners Overview Run fast, filter faster. The UltraFlask+ Filter Cap threads seamless onto all of HydraPaks 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.