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XTX50 (DS4 DIN)
Apeks logoXTX50 DS4 Din

This first stage goes to the extreme and never disappoints making it the regulator of choice for technical divers around the world.


  • This regulator is similar to the XTX50 mentioned previously less the rotating turret
  • The compact first stage is ideally suited for twin manifolds or for use on a single valve.
  • The one high-pressure port and four low-pressure ports are positioned for most common technical diving rigs
  • The over-balanced first stage provides superior performance at deeper depths
  • The first stage is dry-sealed preventing the entry of contaminants as well as ice formation on the main spring
  • The XTX50 second stage is pneumatically balanced for very easy breathing
  • Due to its innovative Reversible Venturi System (RVS), the second stage can be configured into a right hand or left hand orientation
  • Using the venturi control lever, the diver can prevent unwanted freeflow when the regulator is out of the mouth and achieve a venturi boost while diving
  • Easy-to-grip opening effort control knob
  • Suitable for coldwater use
  • Compatible to EAN 40 new, out of the box
  • First stage comes standard with a 300 Bar DIN connector