To celebrate its 50th anniversary, Apeks has introduced a limited edition MTX-RC regulator, enhanced with a premium PVD coating. The regulator features a satin-plated brass body with heat-exchanging ribs to optimise thermal efficiency. Its innovative over-moulded first-stage endcap and environmental diaphragm minimise ice build-up, preventing first-stage free flow in extreme conditions. Each unit includes a commemorative coin, an anniversary booklet, and a regulator bag. 

Suitable for warm, cold, or deep dives, the MTX-RC blends robust military-grade engineering with the signature smooth breathing experience Apeks is known for. With advanced freeze-resistant technology, it prevents free-flows in cold environments, while allowing divers to adjust settings for enhanced comfort in less demanding conditions. Its first-stage design ensures freeze protection, while the second stage offers user-adjustable breathing controls for personalised performance. The manufacturer lists the following specifications for each stage.

First stage features:

• Satin-plated brass body with heat-exchanging ribs for maximum thermal performance.
• Break through, innovative over-moulded first-stage endcap and environmental diaphragm help prevent ice build-up that can cause first-stage free flow in extreme circumstances. Also protects the first stage from impact damage.
• Ribbed diaphragm clamp for improved heat exchange in cold water conditions.
• 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.
• Five medium-pressure ports, four mounted on a rotating turret for improved hose orientation
• Two angled high-pressure ports for optimal hose routing and fitting of transmitters.
• Double swivel hose for greater freedom of movement and comfort.
• Easy to grip DIN hand-wheel or over-moulded yoke hand-wheel, only requires one hand to release.

Second stage features:

• Protective bumpers to protect the second stage from impacts and scratches in the most vulnerable places.
• Ergonomic and simple to use venturi lever.
• Oversize breathing effort adjuster makes adjustment easy in cold water whilst wearing gloves.
• Large purge button.
• Reversible second stage for either a left- or right-hand gas supply configuration.
• A heat exchanger (patented) dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water for a more comfortable breathe.
• Features an innovative Diver Changeable Exhaust system (DCE).
• The system gives the diver the ability to change from a small exhaust tee to a large exhaust tee.
• The regulator is supplied with both sets of exhaust tees.
• Comfo-bite mouthpiece
• Flexible nylon braided hose, which has better cold-water performance than traditional rubber hose.
• Designed and manufactured in the United Kingdom.
• No single-use plastic in the packaging.