Poseidon Valves:
Double Valve 300b m25x2
300 bar tank valve with two G5/8 connections.
Single Valve 200b
The classic Poseidon single valve, for 200 bar tanks. With M 25 x 2 thread on the tank connection.
Single Valve 200b O2 Clean
The classic Poseidon single valve, O2 clean for Nitrox and pure oxygen tanks.