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You cannot breathe directly out of a scuba tank because of the high pressure. A regulator reduces pressure to safe a level that can be inhaled by the diver. A diving regulator has two parts: the First Stage reduces the tank pressure and connects it to the Second Stage which contains the mouthpiece for breathing

Zeagle Onyx II First Stage Yoke

Manufacturer Reference / Part No.: 310-0310


The Zeagle Onyx II Scuba Regulator is the improved version of the original Onyx regulator, offering a sealed first stage that's ideal for cold water conditions.

Out of Stock

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.

The Onyx II is available in yoke and DIN (with or without adaptor) styles.
Environmentally Sealed and Cold Water kit installed
Balanced Diaphragm
5 LP Ports
2 HP Ports
Ideal for cold water
Lighter weight

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