Apeks MTX-RC Single Cylinder Set

Apeks MTX-RC Single Cylinder Set

The MTX-RC combines a dry-sealed, over-balanced first stage with user-adjustable breathing controls. It suits divers who want a robust cold-water regulator platform and the ability to tune inhalation effort, with a rotating turret helping to keep hose routing organised.

Features and benefits

• Over-balanced first stage. The diaphragm mechanism increases intermediate pressure slightly faster than surrounding pressure as you descend, helping compensate for denser breathing gas at depth.
• Dry environmental chamber. The sealed chamber keeps water and sediment away from the first-stage spring mechanism and supports resistance to freezing in cold water.
• Rotating hose turret. The low-pressure turret turns to follow hose direction, making it easier to arrange hoses without tight bends around the first stage.
• Cold-water heat transfer. The ribbed first-stage clamp provides a larger heat-exchange surface, helping counter gas-expansion cooling.
• Balanced second stage. Pneumatic balancing reduces the force needed to open the demand valve, helping the second stage respond smoothly as you inhale.
• Inhalation-effort adjustment. The adjustment knob lets you change the effort needed to start a breath, so you can tune the response within the regulator’s operating range.
• Venturi control. The lever changes airflow assistance inside the second stage. Use the pre-dive setting for surface handling and the dive setting as directed in the manual.
• Comfo-Bite mouthpiece. The silicone palate bridge supports the second stage with less need to clench your jaw, which can make longer dives more comfortable.
• Double-swivel hose. Movement at both ends of the hose helps reduce twisting and pull as you move your head.
• Accessible purge. The large purge button is easy to locate and press when clearing the second stage, including when wearing gloves.

Setup and compatibility

This set is intended for a single-cylinder long-hose configuration. Have the hose arrangement and complete assembly checked by a qualified technician, and use the donation procedure covered by your training.

Care, rinsing and storage

After each dive, connect the assembled regulator to a scuba cylinder and open the valve to pressurise the system. Keep it pressurised while fully submerging the first stage, second stages and connected hoses in fresh water. This allows thorough cleaning of the exposed components and hoses while helping prevent water entering the internal air passages, where it can cause corrosion and damage. Keep the cylinder secure throughout cleaning.

For routine cleaning, Dive Gear Australia recommends Cressi Neoclean Wetsuit Wash Neoprene Cleaner 500 mL or Revivex Wetsuit Shampoo 10 oz to help remove salt, chlorine and everyday residue. Dilute according to the cleaner’s label, then rinse thoroughly with fresh water.

Keep the regulator pressurised throughout washing and rinsing. Lift it out of the water and dry the first stage and cylinder connection before closing the cylinder valve, releasing the pressure and disconnecting. Fit the clean, dry dust cap, then allow the regulator to dry in the shade. Store it with the hoses loosely curved, without sharp bends or tension.

Before each dive, inspect the mouthpiece, hoses and connections for wear or damage. Have your regulator serviced by an authorised Apeks technician at the interval specified in its manual, or sooner if it leaks, is damaged or its breathing performance changes. Leave internal adjustments and repairs to a qualified technician.