Zeagle Onyx CW


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The Onyx CW is the sealed version of the 2011 Scubalab Testers Choice regulator, the Onyx. With the same attractive finish and outstanding performance as the Onyx regulator, the Onyx CW fills the need for those that find themselves in cooler water.


  • The internal structure allows direct airflow through the 1st stage, providing lower turbulence for outstanding performance.
  • Zeagle’s conical precision 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 along with the external diaphragm improves the cold water performance of the Onyx 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 CW comes factory ready for use with EAN/ NITROX to 40% O2.


  • Balanced
  • 5 LP Ports
  • 2 HP Ports
  • Lighter weight
  • Stylish black finish
  • Dry Environmental Seal with Hydro Transmitter

  • Downstream valve
  • Balanced Diaphragm
  • Dive/Pre Dive Venturi Control
  • Diver Adjustable Breathing Sensitivity
  • New Compact Profile
  • Anodized aluminum heat sink
  • Lightweight Braided Hose Length: 30 in. (.76 m)


First Stage Materials: Second Stage Materials:
Body: Brass
O-rings: Buna-N
Seat: Advanced Polymer
HP Valve: Stainless Steel
Exterior Finish: Advanced Black Satin Chrome
Purge:  Flexible Thermoplastic
Case:  Thermoplastic
Poppet Seat:  Elastomer
O-Rings:  Buna-N
Diaphragm:  Elastomeric Polymer
Exhaust Valve:  Elastomer
Mouthpiece: Silicone

Additional information


(Select Options), Yoke, DIN (Add $65.00)