Osprey Hydraulics 3L Resevoir

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Osprey Hydraulics 3L Reservoir

When bigger is better, the Osprey Hydraulics 3L Reservoir gives you an extra liter of carrying capacity. Whether it's a longer trek on your own, or carrying extra water for your junior hikers, the Osprey 3 liter has the features you need to do everything from slide the bag into your pack to pouring the contents into other bottles and pots. A hydrostatic backerplate maintains the structure of this reservoir, it won't balloon or flop when you're sliding it into your pack's hydration pocket, and it will maintain an efficiently flat profile in your pack. The easy slide-seal top seals watertight while giving you a wide mouth for filling and cleaning. The oft overlooked feature that makes your life easier is the pour shield which extends the collar for better control when emptying the bladder into cooking pots or the bottles your kids are carrying. The bite valve comes with a magnetic clip and pairs with the included sternum strap magnet for fast hose control, just grab, bite down on the Hydrapak Blaster bite valve and enjoy a smooth flow of water. A quarter twist on/off switch makes transporting the reservoir leak free nicely easy. Don't underestimate how handy an extra reservoir or two can be, we half fill these and leave them in the freezer overnight for handy cooler ice packs that don't leak. Top them off with water before you hit the trail and you've got cooler water for your summer trekking. A bag that's easy to fill and easy to share, the 3 liter should have a place in your summertime gear.


  • Hydraulics 3L Reservoir for bladder friendly packs
  • Hydrostatic Backerplate provides structure and maintains a flat profile.
  • Slide-Seal top opening seals watertight and provides wide access for easy filling and cleaning
  • Pour Shield extends the collar to ease filling and control pouring into pots or bottles
  • Carry Handle for easy reservoir management and filling
  • Magnetic Bite Valve assembly including a magnetic clip for attaching to the reservoir hose an included sternum strap magnet for hose management
  • Hydrapak Blaster bite valve offers fast, smooth water flow with a ¼ twist on/off switch
  • QuickConnect System for easy removal/filling of the reservoir and filtering in the backcountry
  • BPA-free, phthalate-free, lead-free
Osprey Hydraulics 3L Resevoir
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