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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 Envoy Razor


    A combination 1st stage and tank valve perfect for pony bottles.

    Out of Stock

    A combination 1st stage and tank valve perfect for pony bottles. The Envoy RaZor regulator has a Flow-by Piston style 1st stage with design features that allow direct airflow through the 1st stage, providing performance that far exceeds what would be expected in an economical regulator. The 2nd stage is a balanced orifice design.

    The Flow-by Piston design of the RaZor 1st stage provides much greater reliability and serviceabilty compared to conventional designs, while improving responsiveness and performance at all breathing rates. This 1st Stage sits direct atop a Tank Valve section the threads into any standard 3/4-14 NPSM Scuba Cylinder. This combination saves space and increases efficiency making it ideal where weight and space are critical such as stage bottles and fully redundant systems. The RaZor comes with a filling adapter that allows the RaZor to fill its tank using a standard Yoke Filling Whip.

    You can also purchase a Yoke Transfiller that will allow you to fill the RaZor 1st stage off of another SCUBA cylinder. Look below to view an instructional video on how this is done.

    Work of breathing at heavy demand*:

    1.34 Joule/Liter

    *198 (60M) depth 750 psi inlet, 62.5 RMV (liters per minute respiratory volume)

    Like all Zeagle regulators, The Envoy RaZor comes factory ready for use with EAN/ NITROX to 40% O2.

    Combination 1st stage and tank valve, threads into any standard 3/4-14 NPSM Scuba Cylinder
    High Performance Porting
    Flow-by Piston
    Yoke Style Transfiller or Fill Adapter Included
    4 Low Pressure Ports 1 High Pressure Port
    Weight 1.62 lb.
    Intermediate Pressure: 125-150 psi (8.6-10 bar)
    Downstream valve
    Balanced Diaphragm
    Dive/Pre Dive Venturi Control
    Hose Length: 36 in. (.91 m)

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