Equipped with the same anti-icing technology as all MTX-R models, the MTX-RC resists continuous flow, even in the coldest waters, and can also be adjusted for breathing comfort in less extreme conditions.
This is made possible by the innovative design of the first stage, which protects the regulator from icing, as well as by several buttons on the second stage that allow you to adjust the breathing performance according to the needs of each diver.
Second stage

- Adjustable high performance compensated valve.

- Ergonomic and easy to use Venturi flap.

- Oversized breathing effort adjustment knob is easy to use in cold water, even when wearing gloves.

- Large, easy-to-use, self-operating pressure relief button.

- An overmolded elastomeric front cover incorporates a contoured chrome-plated brass plate for added durability of the second stage.

- Large elastomeric guards on the sides and top of the second stage protect it from impacts and scratches in high risk areas.

- The second stage is reversible and allows for a choice of left or right hand configuration.

- A patented heat exchanger surrounding the valve system dissipates the cold caused by air expansion by drawing in heat from the surrounding water.

- This regulator features the innovative Diver Changeable Exhaust (DCE) system. Two types of baffles (small or large) can be used and easily replaced by the user. The regulator is delivered with both baffles.

- Comfo-bite nozzle

- The braided nylon hose offers better performance in cold water than conventional rubber hoses.

Equipped with the same anti-icing technology as all MTX-R models, the MTX-RC resists continuous flow, even in the coldest waters, and can also be adjusted for breathing comfort in less extreme conditions.
This is made possible by the innovative design of the first stage, which protects the regulator from icing, as well as by several buttons on the second stage that allow you to adjust the breathing performance according to the needs of each diver.
Second stage

- Adjustable high performance compensated valve.

- Ergonomic and easy to use Venturi flap.

- Oversized breathing effort adjustment knob is easy to use in cold water, even when wearing gloves.

- Large, easy-to-use, self-operating pressure relief button.

- An overmolded elastomeric front cover incorporates a contoured chrome-plated brass plate for added durability of the second stage.

- Large elastomeric guards on the sides and top of the second stage protect it from impacts and scratches in high risk areas.

- The second stage is reversible and allows for a choice of left or right hand configuration.

- A patented heat exchanger surrounding the valve system dissipates the cold caused by air expansion by drawing in heat from the surrounding water.

- This regulator features the innovative Diver Changeable Exhaust (DCE) system. Two types of baffles (small or large) can be used and easily replaced by the user. The regulator is delivered with both baffles.

- Comfo-bite nozzle

- The braided nylon hose offers better performance in cold water than conventional rubber hoses.

Apeks XTX 40 Second Stage

• Pneumatically-balanced second stage results in smooth, easy breathing.
• The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used - press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the centre for the full effect of the purge, i.e. when regulator clearing etc.
• The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation.
• Easy-to-grip opening effort control knob keeps the diver in control.
• The second stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mould, yeast and algae.
• A silicone exhaust valve improves the breathing performance of the regulator.
• The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.
• 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.

The second stage Nitrox Apeks reference
All the advantages of the XTX 40 in Nitrox version.
The XTX 40 is an XTX 50 without sensitivity adjustment.
Usable in cold water
The compensated second stage has a heat exchanger and a venturi control.
The second stage is reversible right/left.
Sold alone

Compensated second stage for easy, smooth breathing
The XTX purge button is large and easy to operate. It is progressive and offers 2 flow rates. Press on the sides for a low flow rate, convenient for controlling the inflation of a parachute. Press on the center for maximum flow, ideal for purging a regulator.
Large venturi flap with soft grip, easy to handle. Its shape limits debris ingress, makes it more resistant to friction and easy to handle.
Sensitivity adjustment knob for performance control.
The second stage is made with an additive that limits the formation of bacteria
Comfo-bite mouthpiece to reduce jaw fatigue.
Heat exchanger (Patented) around the mechanism to evacuate the cold generated by the gas expansion while capturing the calories of the water.
 
Right or left hand convertible configuration
Cold water use Yes
Sensitivity adjustment knob Yes
Venturi flap Yes
MouthpieceComfo-bite™

All the advantages of the XTX 40 in Nitrox version.
The XTX 40 is an XTX 50 without sensitivity adjustment.
Suitable for use in cold water
The compensated second stage has a heat exchanger and a venturi control.
The second stage is reversible right/left.
Sold alone

Lightweight, heavy-duty technopolymer housing.

Downstream" system with "dive/predive" lever and flow adjustment knob.

Metal parts in chrome and stainless steel.

Lightweight, heavy-duty technopolymer housing.

Downstream" system with "dive/predive" lever and flow adjustment knob.

Metal parts in chrome and stainless steel.

High-strength, lightweight technopolymer case extruded with carbon fibres.

Downstream" system with "dive/predive" lever and flow control knob.

Lightweight, heavy-duty technopolymer housing.

Downstream" system with "dive/predive" lever and flow adjustment knob.

Metal parts in chrome and stainless steel.

Lightweight, heavy-duty technopolymer housing.

Downstream" system with "dive/predive" lever and flow adjustment knob.

Metal parts in chrome and stainless steel.

Lightweight, heavy-duty technopolymer housing.

Downstream" system with "dive/predive" lever and flow adjustment knob.

Metal parts in chrome and stainless steel.