Osprey Hydraulics Lumbar Reservoir - 1.5 Liters

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Stay hydrated on mountain bike rides, hikes or any other outdoor adventure with the 1.5-liter Osprey Hydraulics lumbar reservoir made to fit your Osprey Seral pack (sold separately).

  • Features

    • Reservoir was designed for the Osprey Seral lumbar hydration pack (sold separately), but can also be utilized in other packs that have lumbar reservoir capacity
    • Easy Slide-Seal top opening seals watertight and provides wide access for easy filling and cleaning
    • Hose clip magnet attaches to included webbing strap magnet for easy water access; magnetic attachment provides a place for your bite valve to rest when not in use
    • Bite valve offers fast, smooth water flow with a 1/4 twist on/off switch
    • Twin-welded circular baffles stabilize the water and maintain a flat profile
    • Highly durable thermoplastic polyurethane film is flexible, resilient and BPA/PVA-free
    • Dishwasher safe (top rack)


    View all Osprey Reservoirs
  • Technical Specs

    Best Use

    Mountain Biking

    Liquid Capacity (L)

    1.5 liters

    Liquid Capacity (fl. oz.)

    50 fluid ounces

    Bite Valve Shut-Off Switch


    Wide-Mouth Opening



    Thermoplastic polyurethane


    14 x 8 x 2.5 inches

    BPA Free



    5 ounces

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