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Item # GRGEG201

Gregory 3D Hydro Trek 3L Reservoir (2023)

Purchase 3D Hydro Trek 3L Reservoir (2023)

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An all-in-one large capacity hydration system and basecamp drinking station, the Gregory 3D Hydro Trek 3L Reservoir offers versatility for both backpacking and camping. Its 3-dimensional design maximizes both on-trail and in-camp performance.


  • Unparalleled versatility: With its 3L capacity, the reservoir is ideal for extended backpacking trips with limited access to potable water and its ability to shift to "basecamp mode" allows the reservoir to offer large groups easy push-button access to drinking water when hung up in camp.
  • Three-dimensional design creates an anatomical fit, shortens drying time, and cuts down on bacteria growth: The soft-molded 3D design effectively distributes weight and positions water to fit flat against your back for optimal stability and minimal sloshing. The design also prevents contact between the top and bottom layers of the reservoir when hanging so it dries fast and keeps unwanted gunk from growing in the interior.
  • SpeedClip connector for easy hanging in a pack: The SpeedClip system creates a one-handed lock-and-go linkage between the reservoir and the inside of Gregory pack hydration sleeves or those of most any backpack.

Other features include:
  • An integrated 90-degee quick-disconnect features allows for smooth hose routing and quick removal from the reservoir
  • A comfortable, soft-molded handle and a molded baseplate make filling easy and provide full-length support for hassle-free insertion and removal from your pack.
  • A soft-molded bite valve mouthpiece with a leakproof lever closure
  • A rubberized fill port provides easy opening and filling and is compatible with 38mm pump filters (filters not included)
  • The push-button basecamp pour spout makes it easy to fill stoves or water bottles, clean up used cookware, or wash hands and a molded dust cover protects the spout from dirt and grime
  • A molded hanger loop with a reflective webbing strap allows for easy in-camp hanging

California residents: view proposition 65  Warning

Technical Specs

Best Use
Backpacking, Hiking, Camping
Item Weight
7.04 oz
Item Dimensions
12.4" x 9.44" x 3.15"
Limited Lifetime
Hydration Reservoir
183 cu in

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