Cressi MC9-SC Compact Pro Regulator - Balanced Cold-Water Diving Set

CRESSI MC9-SC / Compact Pro Regulator Set combines cutting-edge engineering and Italian craftsmanship to deliver exceptional breathing performance in cold-water environments. Built for traveling divers and professionals alike, this system pairs a balanced diaphragm 1st stage with a sealed chamber and a compact, thermally efficient 2nd stage to ensure unmatched reliability and comfort in temperatures below 10 C | 50 F.

The MC9-SC 1st Stage features a super-compensated membrane system that maintains optimal intermediate pressure as tank pressure drops, delivering peak airflow during the final phase of each dive. Precision engineering reduces body weight while retaining robustness, and a semi-flexible elastomer sheath protects against impacts and erosion. A stainless-steel HP seat resists deformation and extends service life, while the polyurethane valve guarantees mechanical resilience and compatibility with hyperoxic mixtures.

Internally, a streamlined air distribution chamber and CRESSI's PressureSync system ensure smooth inhalation and minimal pressure drop (0.5 BAR | 7.25 PSI), providing a natural breathing experience even under heavy demand. Two HP and four LP ports allow versatile hose configuration. Both INT and DIN versions feature electroless nickel-plated brass construction with stainless-steel threads for superior corrosion resistance.

The Compact Pro 2nd Stage, built from CRESSI's Thermoconductive Neopolymer, combines the lightness of thermoplastics with the heat transfer efficiency of metal. This exclusive material prevents freezing and maintains stable performance in extreme conditions. Its downstream valve system, adjustable Venturi effect, and oversized purge button ensure smooth breathing and easy clearing.

Compact (6 cm | 2.4 in) and light (153 g | 5.4 oz), the Compact Pro is ideal for travel and multi-environment use. Together, the MC9-SC and Compact Pro deliver a balanced blend of precision, reliability, and comfort - the signature of CRESSI engineering.

What's in the box
1x MC9-SC Set