RRP: £810

Free UK delivery on all orders over £50
  • Unique over-balanced, diaphragm design.
  • An environmental dry system keeps water out of the main spring chamber, preventing ice buildup and keeping silt and contamination out.
  • The XTX purge buttons are large and easy to operate.


Apeks DST / XTX50 Regulator
The XTX50 regulator brings the high performance of Apeks’ top end regulators down to a more affordable budget, and is our most popular Apeks regulator. The DST first stage gives you plenty of ports – 2x HP and 4x LP as standard, on a swivel turret for perfect hose routing. As you’d expect from Apeks it is an over balanced diaphragm based reg and it’s environmentally sealed first stage means the XTX50 can be used in the coldest of waters.

The XTX 40 is supplied with a longer yellow braided hose and high visibility trim and cover. The octopus uses the same internal mechanism and provides the same level of performance as the XTX 50 but lacks the external inhalation adjustment and the additional interchangeable exhaust cover (compact cover fitted as standard). The housing is reversible as per the XTX 50.


First Stage

Swivel turret body
4 low pressure ports, 4 x 3/8″ UNF
2 high pressure ports, 2 x 7/16″ UNF
Environmentally dry sealed system
Polished chrome finish
Balanced for superior performance
Second Stage

Adjustable cracking control
Integrated venturi control
Pneumatically balanced valve design
Micro Adjuster
Suitable for cold water use
Bright Chrome Finish
Right or Left hand hose configuration
Two shot plastic front cover
Changeable Exhaust Tees (DCE, Diver Changeable Exhaust) (Both sets supplied)


Connections Yoke and DIN available
Type of first stage Over-balanced diaphragm design, environmentally sealed
Body Type One piece forged body
Number of HP ports 2 (7/16″ UNF)
Number of MP ports 4 with 5th port option (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 Braided Flexi-hose
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 cleaned to 100%
Weight Yoke 1272g / DIN 1142g



Scuba Dive Store always offer an extended returns policy of 30 days – so you can rest assured that if the suit, piece of diving equipment or gift doesn’t suit then just send it back and we will either exchange it or offer a full refund less any postage costs. Please return the item to the following address:

Scuba Dive Store
Valley Rd

Click here for full terms and conditions >


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