Medical oxygen regulator is used for oxygen breathing in hospital or home and to be connected on high pressure medical gas cylinder to decrease the outlet pressure and supply a stable low pressure for use. 
the pressure gauge indicates the pressure level of the gas cylinder.
Material: Aluminum body with brass core
Outlet Connector: Barb, Diss
Inlet Pressure: 0-3000PSI
Outlet Pressure: 50PSI
Flow settings:0-4, 0-8, 0-15,0-25 LPM, 12 levels in adjustment

3000psi maximum inlet pressure
1-1/2'' diameter UL-listed gauge
Complies to CGA standard
Internal relief valve:we useFluorubber inside with lubricated high vacuum silicon grease (features:High-temperature resistance,superior chemical corrosion,extinguish automatically after leaving flame)
Piston design regulator
Sintered bronze inlet filter for longer service life
Easy to read flow rate window
Alternative color(green,blue,yellow,golden...)
Selection of 0-4 0-8 0-15 0-25 flow settings each with 12 flow settings
FDA,ISO13485 CE.