Zeagle Onyx II Regulator 350-0310 033671

Mfg Part #: 350-0210
  • Lightweight braided hose for great flexibility
  • Balanced 1st and 2nd stage for superior breathing performance
  • Nitrox compatible to 40% (the recreational limits of nitrox)
  • "Diver Adjustable" Air flow
  • "Diver Adjustable" venturi to prevent unwanted free-flow

Customer Reviews for Zeagle Onyx II Regulator:

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Questions and Answers for Zeagle Onyx II Regulator:

  • Dave:

    Hello I need some opinions and advice on regulators I have the chance to buy a used reg from a friend it is a zeagle flathead 6 bought in 08 has less than 20 dives on it serviced 14 months ago with no more dives on it for $240.00 or I was thinking of buying a new zeagle onyx cw din I know the fhead 6 is an old model but has it changed that much to the fhead 7? or is the onyx a better built/design since it is newer. In short which reg is superior for the things considered here and which would you buy

    Darrick  (Certified Scuba Instructor at Scuba.com):

    Hello Dave, I would suggest going with the newer reg that will have a warranty attached to it. Where as the warranty with your friends regulator will go away when you buy it from him. But both regulators are very reg's you cant go wrong with either one.

First Stage is equipped with 2 high pressure (HP) 7/16' threaded ports and 5 low pressure (LP) 3/8' threaded ports for mounting of gauges and additional accessory items such as inflator Hose and octopus regulator. With high performance porting in a balanced diaphragm design with environmentally and dry seal installed, make this one clean regulator first stage that will give you years of corrosion free service and extreme reliability in cold water conditions.

Zeagle's Onyx Second Stage is lightweight, compact and comfortable, with diver adjustable inhalation resistance controls, free-flow control, and anodized aluminum heat sink built-in anti-freezing feature. Specific design changes have created a regulator that is resistant to free-flow on the surface, yet has incredible smoothness and ease of breathing underwater. This pneumatically balance downstream demand valve second stage regulator is manufactured from flexible and ridged thermoplastic, elastomeric, polymer and silicone rubber.


5 LP Ports
2 HP Ports
Lighter weight
Stylish black finish

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

First Stage Materials: Second Stage Materials:
Body: Brass
O-rings: Buna-N
Seat: Advanced Polymer

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


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