Oxygen Booster by Masterline

Oxygen Booster by Masterline is an electric pump that is used for pumping 100% pure oxygen. It allows the user to fill oxygen cylinders to 4,500 psi from a low-pressure supply; an example of which being a Self-Contained Breathing Apparatus.

Due to an innovative seal design and cooling method, Masterline Oxygen Boosters can fill oxygen cylinders to near ambient temperature, whilst operating at a very low 77dBA noise level. An optional vacuum pump is available as well
as several other customisations.


  • Electrically driven
  • Use up to 4,500 PSI for oxygen
  • Fill up to four cylinders at any one time
  • Sealed bearings
  • Cooling fan and finned aftercooler
  • Inlet shut-off valve
  • Adjustable pressure switch
  • Hour meter 


Masterline boosters are completely oil-free and use only two low friction dry seals. The seals can be replaced in about 20 minutes with only a few tools. The piston guide is the only other part that requires regular maintenance. This is done by simply sliding it off the piston.

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