Apeks XTX50 Sidemount Regulator Kit

The Apeks XTX50 Sidemount Regulator Kit provides everything you need to explore the world of technical sidemount diving. The kit contains two DST 1st stages and two world-class XTX50 2nd stages to deliver flawless performance in any conditions.

The Apeks XTX50 regulators are environmentally sealed, preventing free-flow allowing you to explore water in temperatures below 10*C. The Over-Balanced diaphragm counteracts the effects of increasing ambient water pressure at depth for relaxed, effortless performance no matter how deep to descent.

Find the Apex XTX50 Regulator Here

The kit includes two XTX50 regulator sets, the first comes in a short 60cm hose configuration with a right-angled swivel hose attachment. The second regulator has a 210cm hose and straight swivel hose. Both of these offers improved ergonomics, to help when mounting your rig.

Kit Contents

  • 2 ea. XTX50 DIN regulators with 5 port swivel turrets
    • One XTX50 has a 83” / 210cm hose
    • One XTX50 has a 24” / 60cm hose
  • 2 ea. custom length MP inflation hoses, 250mm (10 inches) (one for buoyancy system, one for drysuit)
  • 2 ea. brass pressure gauges with 6-inch hoses (available in metric and imperial)
  • 1 ea. 90° elbow fitting
  • 1 ea. bungee necklace
  • 1 ea. stainless steel clip
  • 2 sets of short exhaust ports
  • Regulator bag to hold all
  • Setup illustration, CD manual and quick start guide


Apeks XTX50 DST 1st Stage

  • Over-Balanced Diaphragm - Designed for technical diving, the DST 1st has an over-balanced diaphragm ensuring it performs flawlessly even in extremely deep water.
  • Environmentally Sealed - The Apeks XTX50 DST 1st is environmentally sealed. This prevents water getting into the regulator and causing ice build-up or bacteria contaminating the regulator.+
  • Cold Water Ready - The Apeks XTX50 has been designed for technical diving and has been tested to handle water temperatures below 10*C.
  • Swivel Head - The DST head swivels allowing you to route your hoses optimally and kink free.
  • Easy Hose Routing - The DST features 2 high pressure ports and low pressure ports that allow you to easily attach and route all of your hoses.
    • 2 High Pressure Ports (7/16" UNF)
    • 4 Low Pressure Ports (3/8" UNF)
  • Optional 5th Port - A optional 5th port allows you to configure more complex scuba setups easily.

Apeks XTX50 2nd Stage

  • Diver Changeable Exhaust - Apeks have designed their XTX range to suit you. The 2nd stage comes with two swappable exhausts, a larger one for improved bubble clearance and a lightweight compact exhaust to ease of use.
  • Pneumatically Balanced - The XTX50 2nd stage is pneumatically balanced. This ensures that you receive consistent and clear airflow even when your tank has little air inside.
  • Opening Effort Control - The opening effort control allows you to configure how easy your breathing is throughout your dive for an optimal performance and comfort.
  • Venturi Control - The venturi control allows you to adjust the 2nd stage to prevent freeflow when you’re not using it.
  • Comfo-Bite Mouthpiece - The Apeks XTX50 features a comfo-bite mouthpiece. This uses a bridge that sits across your palate to support your 2nd stage reducing jaw fatigue and helps to prevent your mouth drying out.
  • Large Purge Button - The large 2-stage purge button is easily accessible and allow for either a slow, controlled purge or more rapid full purge action.

Who is the Apeks XTX50 Sidemount Regulator Kit For?

Sidemount diving is a technical part of our sport that needs training, but the payoff is huge. The XTX50 Sidemount Kit delivers extremely high performance while taking the stress out of having to buy every piece of your kit individually. The XTX50 is known for its bulletproof reliability and Apeks reputation for technical diving should tell you all you need to know!

Who are Apeks?

Well known for their design and manufacturing of high quality breathing apparatus, Apeks supply more UK divers with regulators than any other dive manufacturer. Apeks has grown to become one of the benchmarks of the industry with superior standards in both engineering and design. Innovative development of not only their regulators but other diving equipment, Apeks offer a lifetime guarantee on all of their equipment, a testimony to the reliability and quality.

Apeks XTX50 Sidemount Regulator Kit

Connections DIN only
Type of first stage Over-balanced diaphragm design, environmentally sealed
Body Type Cylindrical, MP ports mounted on swivel turret
Number of HP ports 2 (7/16" UNF)
Number of MP ports 5 (3/8" UNF)
Environmental Dry Kit Standard
First stage exterior Chrome over marine brass
Orientation Convertible LH or RH
Coldwater Use Yes
Type of second stage Pneumatically balanced
Opening Effort Control Knob Yes
Integrated Venturi Lever Yes
Mouthpiece Comfo-bite™
Exhaust tee Diver Changeable - comes with 2 sets
Heat Exchanger for freezing resistance Yes
Hose type Rubber breathing hoses and braided flexi inflator hoses
Overall work of breathing (WOB) scores Avg. 0.70 joules/liter
Nitrox compatible Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%.
Gauge face Tempered glass
Over-pressure relief on back Yes

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