Filter water on the go. The 42mm filter cap threads seamlessly onto all sizes of HydraPak's 42mm Seeker fluid reservoirs and Flux flexible bottles converting them into filtration solutions. The 42mm Filter Cap can be used to squeeze filtered drinking water into other camp bottles and containers or to drink freshly filtered water from a Seeker or Flux.

Light and compact

At only 57 grams, Hydrapak's filter is one of the lightest filter options available.

Dust cover

Keeps dust away from your drink nozzle. Easily opens and closes with one hand without direct contact with dirty hands.

Compatible with 42mm openings

Easily thread the filter onto Hydrapak water bladders and flexible bottles, including HydraPak Seeker 1 L , 2 L, 3 L, 4 L and 6 L and Flux 750ML, 1L and 1.5L

Fast and safe filtering

Removes 99.99% of E Coli and parasite cysts. Filters approximately 1,500 liters of fresh water at a rate of >1 L per minute.

100% BPA and PVC free

Weight: 57 grams