HydraPak  Seeker 4L Collapsible Water Container - 140 fl. oz.

Color: Mammoth Grey

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Members get an estimated $3.10 (10%) back on this item.
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Go the distance with the high-capacity HydraPak Seeker 4L collapsible water container. Its flexible handle allows for easy pouring and carrying, and it easily fits in or lashes on to your pack.

Location Image of color Mammoth GreyLocation Image of color Mammoth Grey
Location Image of color Mammoth Grey


  • You can freeze it to use as an ice pack or fill it with hot water to keep you warm (max temp 60° C / 140° F)
  • Flexible design makes it so light and compact, you'll forget it's in your pack
  • 2 load-bearing side lash points for attaching to your pack or setting up a gravity feed
  • Made of ultra-durable, abrasion-resistant TPU and RF-welded seams for superior durability and elasticity; materials are BPA- and PVC-free
  • Low-profile, durable, coated handle allows for easy pouring and is tear- and weather-resistant
  • Large 42 mm screw cap opening makes it easy to fill and the rigid rim allows for easy pouring; removable tear-resistant tether prevents cap loss and functions as a carry loop
  • External capacity gauge allows you to track your hydration intake or measure out the contents
  • Fold or crush to collapse down and pack into the included storage bag
  • Backcountry water filter compatible; Katadyn BeFree filter (not included) screws onto the top, allowing you to filter more water at camp
  • Can be used as a hydration reservoir or paired with a Plug-N-Play cap and 28 mm filter adapter (not included)


View all HydraPak Water Storage Bags

Technical Specs

Item #190152
Best Use


Liquid Capacity (L)

4 liters

Liquid Capacity (fl. oz.)

140 fluid ounces






16.5 x 5.9 inches

BPA Free



3.7 ounces

36 reviews with an average rating of 4.1 out of 5 stars

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