Diving regulater,first and second stage regulator

The piston first stage
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;

Second stage regulator:

1.Adjustabl stage II regulator;

2.Color available: black,red,green,yellow;

3.Coome with food-grade silicone mouthpiece.