Apeks DST XTX50 Stage Regulator
Apeks XTX50 second stage regulator
Apeks DST First Stage
Apeks DST First Stage

Apeks DST XTX50 Stage Regulator Set

Sale price£580.00 Regular price£688.00
Save £108.00

Apeks DST XTX50 Stage Regulator Set is ideal for stage cylinder. Apeks DST first stage with rotating turret paired with XTX50 second stage with a breathing effort adjustment.


Dispatched in 1 to 2 days

Contact Form & Details

How can we help?

If you need to contact us for any issue or assistance, you can do so online by filling out the online Contact Form, emailing us at sales@dirdirect.com or calling us on +44(0)1305 824 555. If it's about a purchase you've made for us please also include your order number.

Our brick-and-mortar store Underwater Explorers based on Portland, Dorset is staffed 7 days a week, including weekends and bank holidays. As it's an active store visited by divers from around the country and world regularly, if we can't make it to the phone for any reason please leave a message and we'll get back to you asap.

Any queries are usually answered the very same day and at most within 24 hours.


Why Portland?

We’re located on the Isle of Portland (in Dorset) because Portland has been one of the most popular scuba diving locations in the United Kingdom even before we set up operations here back in the year 2000.

On one side, we’re minutes away from the sheltered waters of Portland Marina and Harbour, while on the other, it’s just a brief walk to reach our famous scuba diving destination Chesil Cove and start of the 16-mile-long Chesil Beach.  

Portland’s location makes it ideal for scuba diving, freediving, snorkelling and other surface water sports activities. 

Check out how many wrecks we have around here by clicking on Scimitar Diving's Wreck & Dive Sites chart!

Alongside dive clubs, many instructors and dive schools travel here to train and offer scuba diving certification ranging from open water diver to mixed-gas tech diving or rebreather diving levels.

Whether you’re doing a boat dive from Portland Marina or Castletown or a shore dive at Chesil Cove, Portland is well known for offering many possibilities: Reef diving to wreck diving and night diving, underwater photography or underwater videography. Anything other than cave diving is possible here.

Likely being the best-stocked diving shop in the UK, at Underwater Explorers we offer in-store scuba diving equipment advice and sales, as well as gas fills, to locals and visitors (read About Us).

But... If you’re googling “scuba diving shop near me” like some, look no further, there's DirDirect online.

Here at DirDirect, we list our cutting-edge equipment for worldwide delivery and we’ve got you covered whatever your level of diving: We’re your local dive store wherever you are in the world.

All that with over 20 years of experience especially in technical diving, from training to equipment, advice and sales.


Underwater Explorers, Unit 1, Maritime Business Centre
Mereside, Portland, Dorset, DT5 1FD


The Apeks DST XTX50 Stage Regulator Set is one of the most popular stage regulator sets.

The Apeks DST first stage is ideal for stage cylinder regulator due to swivelling turret. Rotating turret reduces hose tension and allows for optimum hose positions and comfort. 

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

Apeks DST XTX50 Stage Regulator Set includes

  • Apeks DST DIN first stage
  • Apeks XTX50 second stage
  • 40" rubber stage regulator hose

XTX50 Second Stage

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
  • Changeable Exhaust Tees

Apeks DST First Stage

The Apeks DST first stage is ideal for stage cylinder regulator due to swivelling turret. Rotating turret reduces hose tension and allows for optimum hose positions and comfort. 

Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth.

A dry chamber prevents water
 from coming into contact with the DST first stage spring to stop freezing.

  • Environmentally sealed
  • Dry sealed balanced swivel turret first stage
  • 4 MP ports mounted on a swivel turret
  • 2 HP ports on the body
  • Finished in highly polished chrome
SKU: RG115128S