Apeks

DST XTX50 Single Tank DIR Regulator Set

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  • Regular price AED 4,000.00
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The Apeks DST XTX50 Single Tank DIR Regulator Set it put together by us to bring you the DST's steadfast reliability with the XTX50's precise adjustability, catering specifically to the principles of single tank DIR style diving. It stands out for its straightforward design and superior breathability, essential for divers dedicated to the minimalistic and efficient DIR ethos. Engineered for cold water exploration, its environmental seal prevents freezing, guaranteeing smooth operation. This regulator set not only matches the rigorous demands of advanced diving but also enhances the streamlined, functional approach characteristic of single tank DIR diving, ensuring divers can tackle their underwater quests with confidence and control.

Apeks DST XTX50 Single Tank DIR Regulator Set includes:

  • 1 x Apeks DST First Stage Regulator, DIN
  • 2 x Apeks XTX50 Second Stage Regulators
  • 1 x Rubber Hose LP (Black), 210 cm
  • 1 x Rubber Hose LP (Black), 62 cm
  • 1 x Rubber Hose HP (Black), 60 cm
  • 1 x DeepStop SPG, BAR
  • 2 x Bolt Snaps (Long Hose & SPG)
  • 1 x Bungee Necklace for Backup Regulator
  • 1 x Apeks Regulator Bag

Want to change hose types, hose lengths or SPG? Contact us at orders@titandiveshop.com to customize your regulator set exactly to your requirements.

Please be aware that each custom set is fully assembled upon order, and we require up to 3 days to complete the assembly process.

Apeks DST First Stage

  • Features an over-balanced diaphragm design that delivers exceptional performance at great depths.
  • Comes with environmental sealing for outstanding performance in cold water conditions.
  • Equipped with a swivel turret that includes four low-pressure (LP) ports and two high-pressure (HP) ports, all set on a polished chromed brass body for durability and ease of use.
  • 5th port for enhanced versatility.
  • The DIN connector ensures compatibility and readiness for use with Nitrox.


The Apeks DST regulator showcases a unique over-balanced diaphragm design which enhances performance as you dive deeper. This feature causes the intermediate pressure in the hose to increase more rapidly than the ambient pressure, ensuring top-notch performance even at extreme depths. Its body, plated in polished chrome, features a swivel turret with two standard high-pressure ports and four high-flow low-pressure ports for flexible hose configuration. An environmental seal prevents water, ice, silt, and contaminants from entering the main spring chamber, ensuring reliable performance in challenging conditions. Standard with a DIN connector and Nitrox Ready, the DST is designed for divers seeking advanced features and reliability.

When sold separately, individual regulator stages are provided as configured by the manufacturer, and the final setup is the responsibility of the customer. Note that if the first stage is purchased as a standalone product, three of the four LP ports will be plugged, and both HP ports will also be plugged.

Apeks regulators come with a Limited Lifetime Warranty for the original owner, provided they undergo annual inspection or service by an AUTHORIZED AQUALUNG AMERICA Dealer. This warranty protects against defects in parts or workmanship for the life of the regulator and includes participation in the Free-Parts-For-Life Program as described on their website.

Apeks XTX50 Second Stage

The classic and popular Apeks XTX50 Second Stage Regulator with a breathing effort adjustment for precise control of breathing effort.

XTX50’s Second stage can be converted from a right-handed hose configuration, as supplied, to a left-handed one. This feature is known as the Reversible Venturi System. Changing the regulator to a left-handed configuration is quick and simple and can be performed by any Apeks Authorised Service Technician.

The XTX50 Second Stage incorporates the feature of Diver Changeable Exhausts system. This system allows the diver to change from a small exhaust tee to a large one. This gives the user a choice of the wider exhaust tee for minimal bubble interference, essential for underwater photography, or the narrow exhaust tee for a smaller compact and comfortable set-up.


The Apeks XTX50 Second stage incorporates a two-shot high-strength composite front cover, improving the durability of the most vulnerable part of the demand valve.

The ergonomic Venturi lever of the Apeks XTX50 Second Stage has been designed to reduce the amount of grit ingress.

A silicone exhaust valve has been used on the Apeks XTX50 Second Stage, improving breathing performance.

  • Adjustable breathing adjustment control
  • Integrated venturi control
  • Pneumatically balanced valve design
  • Micro Adjuster
  • Suitable for cold water use
  • Right or Left hand hose configuration
  • Two shot plastic front cover
  • Changeable Exhaust Tees