• When the ONYX first came out, it earned high marks as an easy-breathing reg. Now Zeagle added a dry-seal system to the first stage and a heat sink to the second stage, creating the ONYX II cold-water regulator.

    The internal structure allows direct airflow through the 1st stage, providing lower turbulence for outstanding performance.

    The high-pressure valve provides much greater reliability and service life compared to conventional designs, while improving responsiveness and performance at all breathing rates.

    The braided LP hose provides high flow and tremendous abrasion resistance while having great flexibility. The compact exhaust tee, advanced black satin chrome finish and light weight construction give the ONYX a beautiful presence.

    An anodized aluminum heat sink on the 2nd stage along with the external diaphragm on the 1st stage improves the cold water performance of the ONYX II regulator.

    Work of breathing at heavy* demand: 0.95 Joule/Liter *198 (60M) depth, 750 psi inlet, 62.5 RMV (liters per minute respiratory volume)

    Like all ZEAGLE regulators, The ONYX II comes factory ready for use with EAN/NITROX up to 40% O2.
  • Designed for cold water diving and Nitrox ready up to 40%

    1st stage
    • Body material: marine-grade brass with black satin chrome finish
    • Air-balanced diaphragm design
    • Environmentally sealed and cold-water kit installed
    • 2 HP ports
    • 5 LP ports
    • Available in INT and DIN 300
    • Weight: 1.6lbs/730g (DIN)

    2nd stage
    • Air-balanced downstream valve
    • Casing material: thermoplastic
    • Valve housing (barrel) material: stainless steel
    • Inhalation effort adjustment knob
    • Venturi system (dive/pre-dive switch)
    • Anodized aluminum heat sink
    • Weight: 0.6lbs/275g (without hose)

    Service interval: 12 months
  • Ships within: 1-4 business days. 

    All Zeagle regulators are covered by a limited lifetime warranty and include free parts for your annual service. Restrictions apply (valid for original owner and at regular service intervals)! For more details check Zeagle's warranty page.

    Useful links:

     ZEAGLE warranty

    ZEAGLE product registration

    ZEAGLE product manuals

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