The 62X first stage also features the most recent technology. It features TBP (Twin balanced Piston) technology as well as AST (Auto sealing technology).
TBP: The ultimate solution for extremely cold water. The first stage is completely isolated, guaranteeing the greatest reliability at extreme depths.
AST: is a dynamic technology that provides protection against water entry to the first stage, without affecting the performance of the regulator during use.
This pneumatic solution ensures reliability without compromise.
AST is an internal component that is automatically activated by air pressure, thus requiring no
action from the diver. lt simply opens when the first stage is pressurized and closes when it is depressurized.