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Apeks ATX40 + Octo


First Stage:

  • Unique over-balanced, diaphragm design
  • 1 HP port and 4 LP ports are available
  • An environmental dry system keeps water out of the main chamber

Second Stage

  • Pneumatically-balanced second stage
  • The large purge button on the ATX is easy to operate even with thick gloves
  • The integrated venturi control provides a performance boost at depth while preventing unwanted freeflow at the surface.
  • The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue
  • A heat exchanger (patented)
  • Offers a compact, integrated exhaust tee
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Before the XTX became the regulator of choice, the ATX models ruled the seas. The ATX40 is still made available today at an entry-level price. This excellent regulator offers a fully balanced first and second stage with coldwater capability.