First Stage: Air-balanced flow-through piston provides constant and effortless airflow unaffected by depth, tank pressure or breathing rate.

Polished chrome-plated marine grade brass body is close to 20% smaller than the MK25, making it an easy travel companion.

Unique thermal exchange design with external fins optimises freezing resistance.

Two high pressure ports, one on each side of the body, allow the first stage to be positioned either up or down.

Standard “smart” hose routing cap offers four low pressure ports angled for more convenient hose routing (+/- 20º).

Optional hose routing cap increases routing configurations with four angled low pressure ports (0°/30°) plus a fifth centralized high-flow low pressure port, ideal for technical diving.

Redesigned yoke allows for easier mounting on a cylinder, and a redesigned cap protects components from water intrusion after the dive.

Weight: INT 232: 780G; DIN 300; 570g.; Airflow at 200bar: (l/min): >7500.; Intermediate pressure: 9.0-9.8 bar

Air-balanced valve for smooth inhalation effort at varying depths and supply pressures.

Compact rugged fiberglass reinforced nylon casing and exhaust tee take up little space in a dive bag.

Stainless steel frame on the front cover adds the SCUBAPRO signature.

The poppet and lever allows the design to maintain the same overall size as the C350.

The exhaust tee is based on the S620 Ti’s design and contributes to better work of breathing (a 10% improvement over the C350).

User controls include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA).

Large purge button is easy to activate, even wearing thick gloves.

Super-flow hose features an oversized bore that allows more air to flow on each inhalation.

Compact Hi-Flow mouthpiece improves airflow as well as mouth comfort, fitting all mouth sizes, from largest to smallest.