Ideal for long days or even weeks out on the trail, the Osprey Hydraulics 3L Reservoir is built to keep hydration simple, reliable, and always within reach. Designed for hikers, backpackers, and outdoor adventurers, it combines lightweight performance with practical features that make staying hydrated effortless from start to finish. The innovative HydroStatic Backerplate helps maintain a flat, anatomical shape while making it easy to slide into a fully loaded pack.

Refilling and maintenance are straightforward thanks to the wide Slide-Seal top opening, while the Pour Shield helps reduce spills when filling from taps, streams, or camp containers. On the move, the Magnetic One-Hand Bite Valve keeps the hose secure and accessible, providing smooth hydration whenever you need it. Built from BPA-free, phthalate-free, and lead-free materials, it delivers safe, fresh-tasting water in a remarkably lightweight 200g package.

Key Features

  • HydroStatic Backerplate: Provides structure and stability while maintaining a flat profile, making it easier to load into a full pack and preventing uncomfortable bulging against your back
  • Magnetic One-Hand Bite Valve: Integrated magnetic attachment secures the hose to your sternum strap, delivering convenient access to hydration and smooth water flow
  • Slide-Seal Top Opening: Wide opening creates a secure, leak-proof seal while allowing easy filling, emptying, and thorough cleaning
  • Pour Shield: Extended collar design helps control water flow, making filling and pouring significantly easier in a variety of environments
  • QuickConnect System: Allows fast hose disconnection for convenient refilling or water filtration without removing the hose from your pack routing
  • Featherlight Build: Maintains a lightweight 230g, delivering premium functionality without adding unnecessary bulk
  • Certified Safe Materials: Constructed from BPA-free, phthalate-free, and lead-free materials, meeting strict safety standards for reliable hydration on every adventure
The Osprey Hydraulics 3L Reservoir features a rigid HydroStatic Backerplate that provides essential structure. This flat profile prevents the bladder from bulging against your spine and makes it incredibly easy to slide into an already full pack without buckling or bending.
The hydration system comes equipped with a Magnetic One-Hand Bite Valve. This integrates a strong magnet on the hose that pairs directly with an included sternum strap attachment, keeping your drinking tube neatly organized against your chest and easily accessible on the move.
Yes. It features a QuickConnect System that allows you to detach the main bladder body from the drinking tube effortlessly. You can leave the hose routed through your backpack while you take the reservoir to a stream or sink for a quick refill or to filter water.
Absolutely. The entire hydration system is built completely BPA-free, phthalate-free, and lead-free. All components are certified food safe according to strict FDA and EU regulations, giving you total peace of mind when drinking from it day after day.

Brand : Osprey

SKU: OSPR-102412

Model # : 10005148

Barcode : 843820160857  (AD-2)

Bladder Volume : 3L

Insulated : No

Volume : 3L

Weight : 230g

Dimensions : 45 x 19 x 1 cm

Free shipping on orders over $140 to Australia*
Shipping on small orders (under $140) only $9.95
Shipping on all orders to NZ only $9.95
Express shipping to Australia & NZ only $15

Standard Shipping (AU) – FREE on orders over $140 and $9.95 on orders under $140. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.

Terms and conditions apply, click here for a full overview of our shipping policies

Osprey Packs are covered by Osprey's All Mighty Guarantee and will be repaired if faulty. Replacement may be offered if repair is not possible. Osprey Hydraulics Bladders covered by limited 1 year manufacturing defect warranty. Hydraulics Bladders & Soft Flasks: please visit https://support.hydrapak.com/hc/en-us/categories/115002258407-Warranty to lodge a direct warranty claim.

  • If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
  • Not all products are eligible for change of mind returns (click here for excluded products).
  • Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
  • Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties

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