1st stage with Primary

Instinct 12s




First Stage 12s

The 12s first stage, with a nickel- and chrome-plated brass body, stands out from previous versions because of its size and its lower weight. This was made possible thanks to innovative technical solutions that still maintain the same internal components. Diaphragm technology with the DFC system and replaceable high-pressure seat connector. The high-pressure valve, manufactured in “tri-materials” allows for improved durability and security. These advances have made it possible to include conical filters with better filtering power in both the INT and the DIN versions. It features a preferential intermediate-pressure DFC port for the main second stage hose, as well as three other LP service ports and two ports for high pressure. All ports have been rearranged in order to offer better positions for the hoses and the transmitting unit for integrated dive computers. 

Second Stage Instinct

The revolutionary and innovative design of this second stage introduces numerous benefits for divers, in terms of both performance and comfort. The leading characteristic is the special angle of the hose compared to the second stage. This solution allows the diver to choose a shorter hose, reducing the risk of entanglement and making the equipment lighter weight. The small size, achieved through the use of special internal components with specially designed shapes and sizes, and the backward shift of the center of gravity in the second stage (closer to the diver's mouth), help noticeably reduce jaw fatigue, even after prolonged periods of use. Another Mares innovation, specially designed for the Instinct second stage, is the position of the inhalation diaphragm. In fact, differently from traditional membranes, which are positioned vertically, and in some cases horizontally (with respect to the diver's vertical), in the Instinct second stage the diaphragm is angled at 45°. Along with the integrated VAD, this solution guarantees advanced performance when breathing in all dive positions. The angled lateral port dramatically reduces the presence of bubbles in front of the mask to ensure perfect visibility. The conical shape created inside the second stage makes clearing easier in the various dive positions. The openings on the cover, intended to allow water to flow over the diaphragm, are positioned in the rear section of the second stage; this solution prevents freeflow, even in the presence of strong currents

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