





42mm Filter Cap
On-The-Go Water Filtration

Shipping $45+

Returns

Guarantee
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LIGHT & COMPACT
At only 57 grams, our filter is one of the lightest filter options available. Its small size takes up no extra space when stored or threaded directly onto a Seeker or Flux.
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DUST COVER & HIGH-FLOW NOZZLE
Keeps dust off your drink nozzle. Quickly opens and closes the drink nozzle with one hand without any direct contact with dirty hands.
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42MM THREAD COMPATIBLE
Easily thread the filter onto some of the most popular backpacking water storage bags and flexible bottles including the HydraPak Seeker 2L, 3L, 4L, and 6L and 1L and the Flux 750ML, 1L, and 1.5L
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FAST & SAFE FILTRATION
Removes 99.99% of E Coli & Parasitic cysts. Filters approximately 1,500 liters of fresh water at a rate of >1 L per minute.
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SAFE
Filter removes Escherichia coli bacteria, Cryptosporidium parvum cysts, and Giardia Lamblia (99.9%) from approximately 1,500 liters of water.
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SAFE & RELIABLE
100% BPA and PVC Free
COMPATIBLE GEAR

























Seeker™ 2 L
ULTRA-LIGHT WATER STORAGE

Shipping $45+

Returns

Guarantee
The great outdoors just got greater. The Seeker™ 2 L is HydraPak’s ultra-light, durable water storage bag for camping, backpacking, you name it. It collapses down to the size of a fist, easy to pour and transport. The leakproof, tethered cap is filtration compatible making it the perfect tool for the long haul.
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PACKABLE
Fold or crush to collapse down and pack into the included storage bag
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FILTRATION COMPATIBLE
Filter more water in the backcountry, most 42mm threaded filters screw on to top
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LOW-PROFILE HANDLE
Durable, coated handle for easy pouring and carrying
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LIGHTWEIGHT
Flexible design makes it so light and compact, you’ll forget it is in your pack

















Seeker™ 3 L
ULTRA-LIGHT WATER STORAGE

Shipping $45+

Returns

Guarantee
Get out and stay out. The Seeker 3 L is a durable, ultra-light hydration storage system for all your long haul excursions. A weather-resistant pour handle, and two side lash points for hanging or pack attachment make it the perfect backcountry tool. You can freeze it to use as an ice pack or keep it in your camp kit for your go-to filter bag. Adventure seekers, this one is for you.
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PACKABLE
Fold or crush to collapse down and pack into the included storage bag
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FILTRATION COMPATIBLE
Filter more water in the backcountry, most 42mm threaded filters screw on to top
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LOW-PROFILE HANDLE
Durable, coated handle for easy pouring and carrying
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LIGHTWEIGHT
Flexible design makes it so light and compact, you’ll forget it is in your pack

















Seeker™ 4 L
ULTRA-LIGHT WATER STORAGE

Shipping $45+

Returns

Guarantee
Go the distance with our high-capacity Seeker 4 L. The flexible coated handle allows for easy pouring and carrying. It packs away nice and easy. Its streamlined shape fits in a wide variety of packs, whether strapped to the outside or inside a pack pocket. Pairing volume with performance.
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PACKABLE
Fold or crush to collapse down and pack into the included storage bag
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FILTRATION COMPATIBLE
Filter more water in the backcountry, most 42mm threaded filters screw on to top
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LOW-PROFILE HANDLE
Durable, coated handle for easy pouring and carrying
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LIGHTWEIGHT
Flexible design makes it so light and compact, you’ll forget it is in your pack
- 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.
- EPA COMPANY NO.:102123 EPA ESTABLISHMENT NO.: 102123°CHN°1
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DIAMETER
42 mm -
WEIGHT
57 G / 2.0 oz -
MATERIALS
PP/POM, EPDM, Silicone, Hollow Fiber