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ACR HRU-100 HydroFix / Hydrostatic Release Unit (HRU) Kit

  • Hydrostatic Release Unit for Category I EPIRBs
  • Patented Rod System Allows for Quick, Reliable Release in an Emergency
  • Easily replaceable, 100% Factory Tested, For Sea Shelter Brackets
  • Item #: 
    Model #: 
    Shipping Weight: 
    0.40 Lbs.
    List Price: 
    Our Price:
    Status:    In Stock


    The Hydrofix HRU Kit is a universal kit used for Category I ACR EPIRBs


    • Patented rod system allows release of the beacon from a Category I bracket when submerged in water between 4.9 - 13.1 ft (1.5 - 4 m)
    • Does not rely on a battery, blade or pyrotechnic device to release the beacon – allowing for a quick, seamless and reliable release in an emergency
    • Easily replaceable
    • 100% factory tested


    • Designed to work with Sea Shelter™, Sea Shelter™2 and Sea Shelter™3 brackets
    • Dimensions: 2.5" x 3.4" x 2.0" (6.3 cm x 8.6 cm x 5.0 cm)
    • Weight: 3.3 oz (93.6 g)

    Kit includes:

    • Category I bracket (SeaShelter™) release rod
    • Keyed bracket adapter
    • Replacement hydrostatic release unit (HRU)
    • Cotter pin, large
    • HRU expiration label
    • Category I bracket (SeaShelter™) release rod

    NOTE: This is a date-stamped product and must be replaced every 2 years from the date of installation or 4 years from the date of manufacture

    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to


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