Western Enterprises M1-540-P M1 Series Preset Pressure Gauge Regulators, Oxygen, CGA540 Nut/Nipple, 3,000 psi

Product Features:

Chrome-plated brass body with all brass high-pressure chamber
1100 SCFH air maximum rated flow at 2000 psi
Internal reseating Relief Valve protects against overpressurization
DISS gas specific outlets