Cressi MC11-SC / Zen Pro Regulator 1st & 2nd Stage Set

Become one with the water. Welcome to the Zen of diving. The MC11SC/Zen Pro regulator is exceptionally lightweight and compact; you’ll barely know it’s there on long dives, and it delivers exceptional breathing performance, even under ice. The hyper-balanced diaphragm MC11SC 1st stage features Cressi’s PressureSync technology, which maintains consistent Intermediate Pressure (IP) throughout each breathing cycle. This innovative design reduces pressure fluctuations in the 1st stage, delivering one of the smoothest and most comfortable breathing experiences available. The environmentally sealed design keeps the first-stage chamber dry, eliminating the risk of freezing and contamination. A high-capacity conical filter with a large surface area traps more impurities from the cylinder, ensuring cleaner air and reduced maintenance. The Zen Pro 2nd stage is purpose-built for cold-water performance, featuring a case made from an innovative Thermoconductive Polymer. This lightweight, durable material offers the heat transfer properties of metal, preventing ice from forming inside the 2nd stage.  Radial pressure openings evenly distribute water pressure across the diaphragm, reducing free-flows and ensuring the 2nd stage only delivers air when needed, even in strong currents. With a nickel-plated anti-scratch coating and protective bumpers to guard against knocks and bumps, the MC11SC/Zen Pro is ready for adventure, from temperate reefs to beneath the ice. TECHNICAL FEATURES Cold Water Certified EN 250 A < 10°C The Hyperbalanced Diaphragm 1st stage increases airflow as cylinder pressure drops, for a consistent breathing experience at all depths.  Environmentally sealed for cold/warm water diving - the 1st stage chamber stays dry, protecting the internal parts from freezing or contamination. 2 7/16 HP ports UNF 4 3/8 MP ports UNF The ports are arranged in a T-shape to optimize hose routing while keeping the first stage compact. Cressi’s PressureSync technology maintains Intermediate Pressure during the breathing cycle for a consistent breathing experience. Electroless Nickel Plated 1st stage. A simple and dependable downstream system 2nd stage offers reliable performance and a fail-safe design. Adjustable venturi maximizes airflow in dive mode and prevents free-flows when the regulator is on the surface. Lightweight (149 gr) yet strong, the thermo-conductive 2nd stage case transfers warmth from the water or diver’s breath to reduce the risk of freezing. Radial Pressure Openings prevent free-flows, ensuring the regulator delivers air only when needed, even when swimming against strong currents. Large purge button is easy to locate and use, particularly while wearing gloves.