HydraPak Seeker 3 L Collapsible Water Container + Filter Cap - 100 fl. oz.

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A go-to ultralight water filtration solution, the 3-liter HydraPak Seeker + Filter is designed for easy water collection and storage, and it can be rolled or squeezed to filter into other containers.


  • Includes a 3-liter Seeker collapsible water container and 42 mm filter cap
  • High-flow nozzle can be opened and closed quickly with one hand
  • Durable, coated, low-profile handle allows for easy filling, pouring and hanging
  • Extremely packable, the container stashes in the included storage bag when empty
  • Load-bearing lash points let you attach the container to your pack or set it up for a gravity feed
  • Made of ultra-durable, abrasion-resistant TPU with RF-welded seams for superior durability and elasticity
  • Container is 100% BPA and PVC free, and it has a wide working temperature range—container can be frozen or filled with hot water; max temp 60°C/140°F
  • 42 mm filter cap effectively removes common waterborne bacteria, such as E. coli (99.9999%), and parasitic cysts (99.999%) per EPA Guide Standards and NSF P231
  • Removes microplastics (99.999%) per NSF 42 greater than or equal to 3.0 microns in size
  • Filters approximately 1,500 liters of fresh water at a rate of more than 1 liter per minute


View all HydraPak Straw Water Filters

Technical Specs

Best Use


Filter Type


Filter Medium

Hollow fiber


Protozoa And Bacteria


>1 liter per minute

Housing Material


BPA Free


Field Cleanable



5.5 x 14.2 inches


4.5 ounces

26 reviews with an average rating of 4.5 out of 5 stars

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