ECS Equipment - Oxygen Supply and Cabin Pressure Control Section
Rego 1/2" Relief Valve | for Gas, Cryogenic Systems | Material Brass | 235 PSI | Tamper Resistant | Oxygen Service per CGA G-4.1 | Primarily Designed for Vapor Line System Safety Applications - Amazon.com
Medical Oxygen Pressure Gauge Pressure Relief Valve Buoy Type Oxygen Inhale | eBay