high quality the piston first stage regulator for scuba diving equipments underwater sports

high quality the piston first stage regulator for scuba diving equipments underwater sports

 1.Type-Flow through piston and balanced diaphragm design;                    

  2.Dry ambient chamber;                                                        

  3.Balanced diaphragm design;                                                

  4.Thermal Insulating System(TIS);                                                    

 5.Anti Freeze system;                                                                              

 6.4 Low pressure ports;1 High pressure ports;