Apeks MTX-R Reg Dive Regulator

Introducing the revolutionary Diving Pro X First Stage Regulator - the ultimate choice for divers seeking top-tier performance in extreme conditions. Crafted with a forged 1st stage body, this regulator ensures maximum thermal performance under water.

Designed with an over-moulded first-stage end cap and environmental diaphragm, the Diving Pro X prevents ice build-up that could lead to free flowing, guaranteeing a smooth and safe dive every time. The ribbed diaphragm clamp and angled HP ports optimize heat exchange and hose routing, while the parallel turret ports enhance hose orientation for improved efficiency.

Built for durability, the Diving Pro X features superb impact protection on both the 1st and 2nd stages, giving you peace of mind during your underwater explorations. The simple-to-use 2nd stage requires no dive adjustment controls, reducing the risk of free flow and allowing for a hassle-free dive experience.

Experience ultimate comfort with the double swivel hose that offers greater freedom of movement, while the patented heat exchanger surrounds the valve mechanism, dissipating cold gas expansion and drawing in ambient water warmth. Tested for Octopus use to 60 meters in cold water, the Diving Pro X is developed in accordance with the United States Navy Experimental Dive Unit extreme cold water test, ensuring reliability and performance in the most challenging environments. Choose the Diving Pro X First Stage Regulator for unparalleled quality and innovation on your next dive.

First Stage

• Available in yoke or DIN configuration.
• Suitable for cold water use (below 10°C / 50°F).
• 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 faster rate than ambient. This results in superior performance at depth.
• Over-moulded innovative endcap and environmental diaphragm, a forged 1st stage body offering maximum thermal performance.
• The 5th 3/8” UNF medium pressure port includes a protective bumper when not in use.
• Forged first stage body with heat exchanging ribs for maximum thermal performance.
• Angled HP ports for optimal hose routing and fitting of transmitters.
• Forged rotating turret with medium pressure ports in a parallel direction for improved hose orientation.
• Ribbed diaphragm clamp for improved heat exchange in cold water conditions.
• Double swivel hose for greater freedom of movement and comfort.
• Tested for Octopus use - EN250A cold water.
• Nitrox/Oxygen compatible – Up to 40% O² outside the EU (European Union), within the EU anything above 21% O² must use an M26 Connection.

Second Stage
• High performance, pneumatically balanced, lever operated poppet valve.
• Large, diver friendly self-flushing controllable purge button.
• Front cover with over-moulded elastomer incorporates a formed chromeplated brass plate improving durability of the second stage.
• Large protective elastomer bumpers on the side and on the top to protect the second stage from impacts and scratches in the most vulnerable places.
• Reversible second stage for either a left or right hand gas supply configuration.
• A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.
• Comfo-bite mouthpiece.
• Double swivel hose.
• Flexible nylon braided hose has better cold water performance than traditional rubber hose.

• 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: 5 (3/8" UNF)
• Environmental Dry Kit: Standard
• First stage exterior: Satin chrome
• Orientation: Convertible LH or RH
• Coldwater Use: Yes - extreme
• Type of second stage: Pneumatically balanced
• Opening Effort Control Knob: No
• Integrated Venturi Lever: No
• Mouthpiece: Comfo-bite™
• Exhaust tee: Diver Changeable - one set supplied
• Heat Exchanger for freezing resistance: Yes
• Hose type: Braided Flexi-hose
• Nitrox compatible: Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%