Apeks XTX50 Primary Second Stage Only
The XTX50 second stage gives you separate inhalation-effort and Venturi adjustment in a component you can pair with a compatible first stage. Its progressive purge and interchangeable exhaust options help you tailor the regulator’s controls and bubble routing.
This listing is for the separate second stage, for use in a compatible regulator assembly.
Features and benefits
- Adjustable breathing feel. The inhalation-effort control lets you tune the adjustable second stage within its operating range.
- Venturi control. Select the appropriate setting for surface handling or diving to help manage free-flow tendency.
- Comfortable mouthpiece hold. The Comfo-Bite palate bridge helps support the second stage without a hard bite.
- Progressive purge. Control the purge response with the amount of pressure applied to the button.
Setup and compatibility
This is a separate regulator component. Pair it with a compatible first or second stage and the required hose; the complete assembly must be configured and checked by a qualified technician. The low-pressure hose is not included.

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