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  • Osprey Hydraulics 3L Reservoir System
  • Osprey Hydraulics 3L Reservoir System
  • RRP$46.49
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Osprey Hydraulics 3L Reservoir System

For 2013 we’ve redesigned our reservoir and significantly updated most of our hydration packs. The new Hydraulics™ Reservoir builds on the successful concepts behind the first generation. Entirely designed and manufactured by Osprey, be assured we looked at every piece of the product in the search for improvements. Nothing was ignored.

When we first endeavored to bring a hydration reservoir to market, we knew it had to be groundbreaking in all respects – carrying water should never compromise fit, comfort or stability in a pack. The Osprey Hydraulics™ reservoir is now entirely designed and manufactured by Osprey, carrying forward key innovations while offering major improvement to many features. Combined with excellent reservoir-to-pack integration, superior technical features and the best gender specific pack-to-body fit and performance available, our hands free hydration program takes another giant leap. We are also proud to introduce Osprey Hydraulics™ Cleaning Tablets - all natural, biodegradable and chlorine free.


  • Easier to handle when filling and loading into a pack
  • Contoured backer plate preserves pack fit and comfort
  • Magnetic bite valve attaches to sternum strap
  • New Metallocene PE high strength & taste free film (BPA & PVC free)
  • Anti-microbial formula to prevent bacteria & mold
  • New 3/4 turn cap quick and secure open/close.
  • Wide mouth opening provides easy fill & access for cleaning
  • New lightweight, low profile handle for easy fill and pack insertion with dual sided hose exit
  • New direct welded HydroStatic™ plate maintains low & wide reservoir profile
  • Anatomical shape keeps water weight steady and close to the body
  • Magnetic bite valve with included sternum strap magnet
  • Built in 180 degree pivot shut-off valve
  • New flexible 1/4”/6.35mm hose for faster water flow

New MPE film provides taste-free qualities of polyethylene with the added benefit of extra strength over typical PE films. The “M” in MPE stands for metallocene, a special catalyst used in the manufacture of the PE resin. It forms a PE that is more consistent and even in structure, resulting in greater strength and resiliency, making it ideal for reservoirs. This added durability allows it to handle hot water. It is BPA & PVC free, of course.

New HydroStatic™: backer plate creates a wider and lower profile. A traditional reservoir barrels out and forms a straight tube when filled, interfering with a pack’s ability to fit the body. The HydroStatic™ plate shapes the reservoir to ensure pack fit is preserved for optimal stability and comfort.

Buy Osprey Accessories from Chain Reaction Cycles,the World's Largest Online Bike Store.

  • Colour: Blue
  • Size: 3L
Rated 3 out of 5 by 9 reviewers.
Rated 2 out of 5 by The pack leaks after few uses I bought this pack to use together with a backpack that didn't come with it's own water reservoir system. I think the Osprey reservoir is too broad and too stiff (both because of the "backbone" and because of a plastic plate on the backside). I can hardly fit it into my backpack because of the combination of these two flaws. If the reservoir had been more narrow or had been less cumbersome it would have been easier to fit. Also the lid is rubbish, it doesn't fir properly so the reservoir leaks water into my backpack. 17 September 2014
Rated 5 out of 5 by Хороший гидропак Пока первое мнение. Через год еще отпишусь по надежности. А так все хорошо. Вместительный. Симпатичный. Удобно наливать воду и совать в рюкзак (Osprey Syncro 20). Крышку только аккуратно нужно навинчивать. Удобный сосок. Магнитик на лямку рюкзака в комплекте. 11 August 2014
Rated 5 out of 5 by Good choice I buy it in first time for my first reservoir system for my previous Ferrino backpack. It just doing the job, like it should do. So I decided later to buy a new Osprey backpak to. The Zephir one... great material, no smell, no mold, even if i left some water in it for a month or so... Great reinforcement membrane on my 2012 model. 17 July 2014
Rated 5 out of 5 by A stiff bladder bag After using the item about 5 times it have performed very well. The bag is very stiff due to bacbone and it's very easy to fill and keep in your backbag. No leakage yet. Mouthpiece is just wonderful! Best bladder bag I have used! 28 May 2014
Rated 4 out of 5 by Best Bladder I have used. After some Bladders with leaking mouthpiece which were expensive to change, works great. I had no Problems with it, despite me biting a hole in the mouth-piece. Especialy when you store it in the fridge, you have a hard time to close it properly. But 20s hassle aren't that bad when you consider it isn't leaking at all ! 02 January 2014
Rated 1 out of 5 by Leaks The only improvments over the original Nalgene version is the bite valve turns up towards the hose to close (mitigating the things/dirt it touches in transit), and possibly has shed some weight. This new version has leaked from day one, both out the top (lid) and bottom hose connection. In the process of seeking warranty support from CRC, but would not recommend the bladder at all. The packs are great, but Osprey needs to address this issue. 18 November 2013
Rated 1 out of 5 by Poor The bladder leaked through the seams after 30-40 uses. Osprey said they would not replace it since it was two months outside the warranty period. Very poor product and dreadful customer service from Osprey 19 September 2013
Rated 3 out of 5 by Not as good as the previous nalgene bladders Bought the new bladder as i couldn't get new bite valves as the diameter has changed. Not as good as the previous nalgene bladder. Seems like they have gone in house to make more money but quality does not seem as good. Bite valves still poor mine only seem to last couple of months before they start leaking. 26 August 2013
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