Easy breathing high
performing cold water regulator
The Onyx II, 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 II 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.
Our 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 II 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 to 40% O2.
1st STAGE FEATURES:
The Onyx II is available in yoke and DIN (with or without adaptor) styles.
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Environmentally Sealed and Cold Water kit installed
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Balanced Diaphragm
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5 LP Ports
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2 HP Ports
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Ideal for cold water
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Lighter weight
First Stage Materials:
Body: Brass
O-rings: Buna-N
Seat: Advanced Polymer
HP Valve: Stainless Steel
2nd STAGE FEATURES:
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Downstream valve
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Balanced Diaphragm
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Dive/Pre Dive Venturi Control
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Diver Adjustable Breathing Sensitivity
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New Compact Profile
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Braided Hose Length: 30 in. (.76 m)
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Redesigned heat sink dramatically increases surface area, aiding in the heat
exchange necessary to avoid freeze-up.
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Co-molded silicone mouthpiece for better fit and less jaw fatigue.
Second Stage Materials:
Cover: Flexible Thermoplastic
Case: Thermoplastic
Poppet Seat: Elastomer
O-rings: Buna-N
Diaphragm: Elastomeric Polymer
Exhaust Valve: Elastomer
Mouthpiece: Silicone