$ 999.00 USD

The MTX-R is based on the MTX, a regulator that was developed in accordance with the United States Navy Experimental Dive Unit extreme cold water test. Innovations in design mean that the MTX-R regulator performs in almost freezing water at a depth of over 60 meters, something that very few other regulators on the consumer market can boast.

With an innovative first stage design that helps to prevent ice build up around the diaphragm, the MTX-R is reliable, rugged and expedition ready.

This product qualifies for Free Parts for Life


  • A first of its kind, over-molded first-stage end cap and environmental diaphragm to prevent ice build-up that could cause a free flow in extreme circumstances.
  • Forged 1st stage body gives maximum thermal performance.
  • Ribbed diaphragm clamp on the 1st stage ensures improved heat exchange in cold water conditions.
  • Angled HP ports allow for optimal hose routing and transmitter fitting.
  • Parallel turret ports allow for improved hose orientation.
  • Superb protection from impact damage on both the 1st and 2nd stage.
  • Simple to use 2nd stage with no dive adjustment controls and a reduced chance of free flow.
  • Double swivel hose for greater freedom of movement and comfort.
  • Patented heat exchanger surrounds the valve mechanism, dissipating the cold caused by gas expansion while drawing in the warmth of the ambient water.
  • Developed in accordance with the United States Navy Experimental Dive Unit extreme cold water test.
  • Tested for Octopus use to 60 meters in cold water.
    Weight DIN – 1.193 kg (2.63lbs)
    Yoke – 1.339 kg (2.95 lbs)
    Max working pressures 1st Stage: DIN - 300 bar (4351 psi) Yoke - 232 bar (3365 psi) 2nd Stage: 9-10 bar (131-145 psi)
    Part No.s AP0060 – MTX-R 1st and 2nd stage with yoke
    AP0061 – MTX-R 1st and 2nd stage with DIN
    AP0063 – MTX-R 1st stage DIN connection
    AP0062 – MTX-R 1st stage yoke connection
    AP0064 – MTX-R 2nd stage
    Certified to EN250A
    Maintenance kit no.s 1st stage – AP0241
    2nd stage – AP0219
    Temp range 32.9°F - 12.778°F
    0.5°C - 55°C
    Connection Types DIN and Yoke
    Service intervals Annual
    Key features Cold water use
    Easy to use
    Durable & reliable
    Intended use Recreational, technical and extreme cold water diving
    WOB 1.75 J/l
    Nitrox/Oxygen compatible Up to 40% O2 outside the EU (European Union), within the EU anything above 21% O2 must use an M26 Connection