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![](https://files.manualsfile.com/81802088-010-02132-23/bg18.png)
3 Confirm the regulator is depressurized and detached from a scuba cylinder.
4 Remove the port plug from the high pressure output port of the first-stage regulator.
5 Connect a high pressure hose extension to the high pressure output port of the first-stage regulator.
16 Diving
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