Hydrapak Seeker 3L Ultra Light Water Storage Mammoth

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Tac Source ships from various warehouses throughout Australia. Allow 5-10 business days for delivery from time of order placement.

Holidays are not considered business days and will cause additional delays. Tactical Source makes every effort to deliver your order in a timely manner. Delivery times are not guaranteed. High order volumes and transit delays with carriers can cause delayed deliveries.

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*Based on Aust Post suggested delivery times

Size Guides

View our size charts below which are to be used as a guide. Please feel free to contact one of our friendly staff if you have any questions regarding sizing. 

TacSource Size Chart

5.11 Tactical Size Chart

5.11 Bag & Backpack Size Chart

CVRT Tactical Size Chart

Mechanix Wear Size Chart

Merrell Tactical Boots Size Chart

Portwest Size Chart

Ironclad Gloves Size Chart

Under Armour Size Chart

Helikon Tex Size Chart

Magnum Boots Size Chart



Phone: 02 6516 0008
Email: support@tacsource.com.au

Hydrapak Seeker 3L Ultra Light Water Storage

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.

    Fold or crush to collapse down and pack into the included storage bag

    Filter more water in the backcountry, most 42mm threaded filters screw on to top

    Durable, coated handle for easy pouring and carrying

    Flexible design makes it so light and compact, you’ll forget it is in your pack

      Features of Hydrapak Seeker 3L Ultra Light Water Storage

      • Low-profile, durable, coated handle for easy pouring and carrying – tear & weather resistant
      • Leakproof 42mm screw cap with tear resistant, removable tether
      • Compatible with 42mm threaded backcountry water filters, the Katadyn® BeFree™ Filter screws on to the top allowing you to filter more water at camp
      • Large 42mm opening makes it easy to fill and tethered screw cap prevents cap from getting lost – creates a convenient carry loop for holding the Seeker upright when filling
      • Two load bearing side lash points, for attaching to your pack or setting up a gravity feed
      • External capacity gauge allows you to track your hydration intake or measure out the contents
      • Versatile design, can be used as a hydration reservoir or paired with a Plug-N-Play Cap and 28mm filter adapter
      • Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
      • Can be frozen or filled with hot water (max temp 60° C / 140° F)
      • Safe and reliable, 100% BPA & PVC free


      • Capacity 3 L / 100 fl oz
      • Dimensions 370 mm x 140 mm / 14.6 in x 5.5 in
      • Weight 92 g / 3.2 oz
      • Material TPU, PP, Nylon
      • Available Colour: Mammoth only