Mares Regulator Dual Adj 62X White Aqua INTThe 62X first stage is record breaking as the smallest first stage in the diving market: it measures 63 mm and weighs only 464 g (DIN). This small but powerful membrane first stage is 10% smaller and lighter than its 52X predecessor and has 30% less volume. Equipped with Auto Sealing (AST) technology that provides protection against water entering the first stage. The core of the 62X has been redesigned to generate an even better seal, making it an