Apeks XTX40 / DS4 DIN Oxygen Regulator NA0341F-1 033403

Mfg Part #: NA0341F-1
  • Brand new & completely redesigned 
  • Not like most other sites that sell the old discontinued model
  • For cylinders fitted with a DIN valve only (for cylinders fitted with a standard yoke valve order adapter above)
  • Certified for up to 100% oxygen service
  • Rugged, simplistic, and dependable
  • Use as a primary, recreational, technical or DECO regulator
  • RVS (Reversible Venturi System) - second stage can be configured into a left/right hand orientation
  • Environmentally sealed first stage provides greater reliability, less maintenance and higher performance
  • "Diver Adjustable" venturi to prevent unwanted free-flow

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Now you can get XTX technology in an oxygen model. This regulator is built for oxygen percentages between 40 – 100%. This compatibility coupled with its excellent reliability make it the choice for technical divers doing high O2 percentage deco stops.

Do not attempt to use this product with enriched air until you have obtained training in nitrox use with mixtures containing over 40% O2 by volume, from a nationally recognized training agency.


This compact first stage has one high-pressure port and four medium-pressure ports

Green and yellow cosmetic pieces clearly identify that this regulator is dedicated for high-percentage oxygen use.

The first stage is dry-sealed preventing the entry of contaminants as well as ice formation on the main spring.

The XTX40 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.

The venturi lever is easy to use even with the thickest of gloves

Suitable for coldwater use

Available for shipment to U.S. zip codes only

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