Medline Oxygen Regulator 0-15Lpm HCS8715M

Best-Valued Mini Oxygen Regulator, 0-15 LPM, CGA 870 Connection
Oxygen regulators feature a brass core for maximum safety and permanent laser etchings on knob and body that won't peel, flake or wear off
All metal anodized aluminum construction is more durable than plastic and will not rust
Gauge protector helps prevent damage