CGA350 Hydrogen Valves Grid view List view CGA350 Valve – 3/4″ NGT 4000 PSI .007″ Oversize CGA350 Hydrogen Valve Brass Material 3/4″ – .007″ Oversize Thread 4000 PSI Safety Add to Quote CGA350 Valve 3/4″ NGT 3000psi CGA350 Hydrogen Valve Brass Material 3/4″ Thread Size 3000 PSI Safety Add to Quote ← 1 2