This package starts with the Mares Proton 12 Metal Regulator the traditional reliability of the MR12T first stage, evolved by the integration of the brand new tri-material valve, with the technical quality of the all-metal second stage. The Proton 12 Metal Regulator is a versatile regulator for recreational or demanding dives in both temperate and cold water The all-metal second stage moisturizes the air with every (more..)

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