Cressi MC11-SC / Zen Pro (silver) [INT]

First stage:
– Hyperbalanced diaphragm technology
– Ultra compact: Only adds 6.5 mm and 30 grams to MC11
– 2 outlets HP 7/16 UNF
– 4 outlets MP 3/8 UNF
– Service pressure: 300 bar (4350 psi) DIN version, 232 bar (3365 psi) INT version
– Calibration pressure: 9.5-10 Bar
– Brass body Electroless Nickel plated
– Liquid silicone molded diaphragm ensures best breathing effort
– High capacity conical filter electroless nickel plated
– Aisi 316 removable nozzle
– Shockproof technopolymer protections
– Cressi PressureSync system for a smoother inhalation pressure
– New low-effort adjustment spring
– Replaceable cylinder with anti-friction and anticorrosion properties
– Flow rate: 4500 l/min
– INT version weight: 603 gr
– Din version weight: 458 gr

2nd stage:
– Improved reliability front cover (more impact resistant)
– Downstream system
– Adjustable venturi effect
– Patented antifriction lever
– Thermoconductive technopolymer body
– Big purge button
– Anti-scratch surface
– Bayonet-type cap holder with security lock
– Removable exhaust tee
– Weight without hose: 140 gr

Combination performance:
– Average cracking effort 7.5 mbar
– Average breathing effort 1 j/l
– Jacketed hose extremely light and flexible weight: 153 gr
– Certification en250/2014 for cold water

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Cressi MC11-SC / Zen Pro (silver) [INT]

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“ZEN is a state of calm attentiveness where actions are guided by intuition rather than by conscious effort.”* This is our ZEN of diving—you become one with the water, calm, attentive, breathing intuitively without effort. This regulator features an ultra-lightweight and compact design to minimize jaw strain, even on extended dives. Paired with our hyperbalanced diaphragm system MC11 SC, it provides powerful, smooth breathing for any water environment around the world – even under ice. This first stage is a dry sealed, cold-water suitable hyperbalanced diaphragm system, power-packed into an ultra-compact size. In order to achieve extremely high performance in low temperature environments, the ZEN PRO second stage in particular was designed with the special thermoconductive thermoplastic neopolymer that has the capacity to transfer heat like a metal while preserving the chemical resistance and physical and mechanical properties of a conventional thermoplastic. This makes it possible to drastically reduce the weight while delivering heat conductivity on par with metal regulator cases. Thanks to this material and a specially conceived purge valve, it passes the strict EN250 cold water tests

First & Second Stage Regulators

CERTIFICATION EN 250/2014 FOR COLD WATER.
THEE 1ST STAGE IS ENVIRONMENTALLY SEALED, PROTECTING IT AGAINST ICING IN COLD WATER AND AGAINST CONTAMINATION FROM PARTICULATE MATTER IN SILTY CONDITIONS. WHEN PAIRED WITH THE MASTER SECOND STAGE, WHICH INCLUDES AN INTERNAL HEAT EXCHANGER, THIS REGULATOR IS AN EXCELLENT CHOICE FOR DIVERS EXPLORING THE MOST EXTREME COLD WATER ENVIRONMENTS.

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