Hydrapak 3.1L OHY Reservoir

(1 review)
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Hydrapak 3.1L OHY Reservoir

When you’re out in the field, you need durable, dependable form and function. The innovative Hydrapak® OHY Reservoir can take a serious beating. Constructed with heavy-duty TPU (thermoplastic polyurethane) for superior flexibility, it meets all tactical strength standards. Equipped with the Hydrapak® Shape-Loc™ Baffle, HydraFusion™ Tube and Blaster™ Bite Valve, it’s built to last a lifetime.


  • CAL FIRE Approved to Spec 1728, with all-black hose, hardware, and dust cover
  • 100% BPA & PVC free
  • Slide-Seal™ Top: opens wide for easy filling & seals tight
  • Shape-Loc™ Baffle: slim profile and increased stabilization
  • Blaster™ Valve: high-flow bite valve with twist shut/off
  • Protective dust cover
  • HydraFusion™ Tube: 36", insulates and protects
  • Plug-N-Play™ Connector: quick disconnect for convenient tube removal
  • Reservoir clip for easy pack attachment
  • Can be frozen or filled with hot water (max temp 60° C / 140° F)
  • Inline filtration compatible
  • No-Leak™ Lifetime Guarantee
  • Weight 0.5 lb
  • Volume  190 cu-ins
  • Dimensions 15.5"x9"x1.5"
  •     Empty: 6" (W) x 15.5" (H) - Add 1" to the height for hang hook if needed
  •     Full: Full: 9”(W) x 13.5” (H) x 2.75” (D) - Add 1" to the height for hang hook
  • CAPACITY: 3.1L (104 fl oz)
  • MATERIAL: 0.4 mm TPU

Care Instructions


  • 5
    Pig hydra bladder

    Posted by John Pollock on 23rd Dec 2019

    Super fast shipping and absolutely love the products I recieved. Installed it on my plate carrier the night I got it. Never ordered pig product and was very impressed with the quality. Really like the bladder. Easy to clean and dry out. Have not figured out to take apart the mouth piece to clean yet.