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Hydraulics 3L Reservoir
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More miles, less stopping — the Hydraulics 3L Reservoir makes it happen
What Our Gearhead® Experts Are Saying:
"The QuickConnect hose system is a genuine upgrade — I can swap in a filter or top off mid-hike without wrestling with the bladder, and the magnetic clip keeps the bite valve exactly where I want it on the strap. It integrates seamlessly with my Osprey pack and holds enough water for a full day out."
Staying hydrated on the trail shouldn't require stopping. The Osprey Hydraulics 3L Reservoir keeps water moving with a Hydrapak Blaster bite valve, a magnetic hose clip that holds the tube in place on the shoulder strap, and an on/off switch that prevents drips when you don't need them. The Slide-Seal top fills quickly and closes securely, and a Hydrostatic Backerplate gives the bladder enough structure to slide cleanly into any Osprey sleeve.
The QuickConnect system lets you detach the hose and attach a water filter in the backcountry without draining the reservoir first — a small detail that pays dividends on longer, more remote trips. Clean, capable, and purpose-built for Osprey packs, the Hydraulics 3L handles hydration so you can focus on the miles.
Details
- 3L hydration reservoir designed for Osprey packs
- Slide-Seal top fills quickly and closes with a secure seal
- Hydrostatic Backerplate adds structure for easy pack installation
- Hydrapak Blaster bite valve delivers fast flow with an on/off switch
- Magnetic hose clip keeps bite valve positioned on shoulder strap
- QuickConnect hose detaches to accept an inline water filter
- BPA-free, phthalate-free, and lead-free TPU construction
- 3L capacity covers full-day hikes and long mountain bike rides
- Item #OSPZ1GK
- Material
- TPU film
- Responsible Collection
- BPA-free, phthalate-free, lead-free
- Volume
- 3 liters
- Hose
- QuickConnect system
- Valve
- Hydrapak Blaster w/ magnetic clip, on/off switch
- Dimensions
- 15H X 7W X 3D IN
- Claimed Weight
- 10.88oz (308.44g)
- Manufacturer Warranty
- limited lifetime
- Activity
- mountain biking, hiking

Built For The Long Haul
Osprey Packs focuses on one thing: packs that fit just right, carry comfortably, and hold up to years of use. Osprey stands for gear you can trust enough to forget about until the adventure’s done.
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