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Meet Our New Line of Water Filters

January 31, 2023
flux plus stream

We've developed a new line of water filtration systems to allow access to potable water in the backcountry. Designed to seamlessly work with our water storage, flexible bottles, and reservoir lines, the filters deliver fast and easy water filtration around camp or on the trail.

“We’re excited to introduce filtration products into our ever-expanding line of hydration solutions. The addition of filters ensures clean drinking water is never in short supply,” said HydraPak President Matt Lyon. “Adventure depends on water, and we’re constantly looking for the best way to help keep athletes hydrated so that they can continue to do what they love.”

Each filter effectively removes common waterborne bacteria and protozoa from approximately 1,500 liters of water at a rate of >1L per minute*. There are two filter accessory designs available: A 42mm filter cap and a 28mm filter kit.  

  • Filter Accessories
    42mm Filter Cap – The new 42mm Filter Cap is compatible with all HydraPak 42mm opening products, including running flasks, Seekers and Flux bottles. The cap is equipped with a high-flow nozzle and dust cover that opens and closes with one hand while preventing contact with dirty hands. Users can drink directly from the nozzle
    or squeeze filtered water into another vessel. Weighing in at 2.0 ounces, this filter offers a lightweight and durable filtration solution for just about any activity.
  • 28mm Filter Kit This, first of its kind, filter gives adventure-seekers the option to thread directly onto bottles and flasks, or connect to Plug-N-PlayTM systems used on reservoirs and and water storage containers. The 28mm Filter is an ideal backcountry water treatment solution whether you are gravity filtering your water out of a water storage bag, or filtering as you drink from a Stow bottle or HydraPak reservoir. The Kit comes equipped with both a cap and backflush adapter. 

In addition to filter accessories, we've also introduced the “+” series, denoting products that come equipped with filters for a complete hydration solution. The FluxTM+ 1.5L bottle,  and SeekerTM+ 3L and SeekerTM+ 6L set a new standard for lightweight, fast and versatile backcountry water filtration. 

  • Flux+ The newly redesigned FLUX series is shaped like a hard bottle, compresses like a soft flask, and cuts weight by 60 percent. The Flux+ comes equipped with the 42mm Filter Cap so you can roll and squeeze into other containers or to directly drink freshly filtered water on the go. Plus, it also has a newly designed bail handle to keep hydration secure in your hand or on your pack.
  • Seeker+ – HydraPak is expanding its popular water storage series to include filter products in 3L and 6L sizes. The Seeker+ 3L comes equipped with the 42mm Filter Cap, whereas the Seeker+ 6L Gravity Filter Kit includes an inline hollow-fiber filter and HydraPak Camp Tap. The Seeker+ series is one of the lightest weight, high-capacity, filter-ready water storage solutions available.
New filter products

HydraPak’s new filter products are available now at, and other quality retailers.

*Effectively removes common waterborne bacteria, such as E. coli (99.9999%), and parasitic cysts (99.999%) per EPA Guide Standards and NSF P231 and microplastics (99.999%) per NSF 42 greater than or equal to 3.0 microns in size.