The bypass features a double curvature to provide a smoother flow while optimising performance, it says. The Fusion 52X has a flow control (a first for Mares), managing the delivery rate of gas from natural breathing to power breathing. The new valve system is claimed to be 600 times more durable, and both stages feature a new satin finish. Available with either international yoke or DIN connections, the Fusion 52X has a recommended retail price of £445.

www.mares.com

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