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XS2 second stage withe long, yellow hose. This model also has a practical, easy to use flow control valve which exploits the Venturi effect created by the I.B.I. system to the full. The new profile of the on lever for the nozzle creates a perfect seal with the membrane disk. The significant fulcrum and the almost total absence of friction enable the air to flow freely. The resulting Venturi effect reduces inhalation effort to a minimum even in the most challenging conditions. Like all Cressi regulators, the XS2 also bears the prestigious CE marking, a guarantee of reliability and performance, having passed rigorous UNI EN 250 European.
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