CGA870 (Med Block) to Hand Tight CGA540 (Large O2 Bottle)

            CGA870 (Med Block) to Hand Tight CGA540 (Large O2 Bottle)      

This is a CGA870 Bi Pin Adapter.  This adapter mimics the tank valve found on emergency O2 Tanks.  This one converts a Large Oxygen Storage Bottle to CGA870 (Med Block) to accept medical regs.  This version is also handtight so you do not have to look for a wrench in an emergency. This way the diver can take advantage of the extra oxygen on site in case of emergencies.