Rebreather Oxygen Booster ROB22 (-HL)

The Maximator® ROB rebreather oxygen booster is specifically designed for use in the sport diving field.

This compact compressed air or hand driven oxygen booster provides a rugged and reliable means of recharging rebreather size tanks.

The ROB Oxygen Booster is also available as a portable package stored in a sturdy plastic waterproof case. Compression ratios and the control of heat generated are especially important on pure oxygen systems. Consult MAXPRO® for safety considerations.

This rebreather dive booster can be fitted with an optional hand lever. With the hand lever the pump can operate on either air, or the hand lever.

ROB boosters:

  • Are lightweight and portable
  • Ideal for installing in a Pelican Case
  • Finned Gas Barrel for efficient gas cooling
  • Oxygen Cleaned
  • Can be driven from either compressed air or from bottle supply
Unit of Measure


N/A 18 x 8 x 15 in


N/A 18.00 in


N/A 8.00 in


N/A 15 in


N/A 35 lb

Displacement Per Cycle

N/A 0.28 in³

Pressure Ratio

N/A 1:28

Air Drive Pressure

N/A 14.5 to 145 psi

Maximum Outlet Pressure at Air Drive of 145 Pound Per Square Inch (psi) Pressure

N/A 4,060 psi

Inlet Connection

N/A 1/4 in. National Pipe Thread (NPT)

Air Drive Connection

N/A 1/4 in. National Pipe Thread (NPT)

Maximum Operating Temperature

N/A 140 ºF60 ºC

Net Weight

N/A 9 lb

Outlet Pressure

N/A 1,800 to 2,000 psi


  • All stainless steel components, cleaned for oxygen service
  • Contaminant free operation with complete separation and isolation between the oxygen and air drive sections
  • No electrical power required, only a 70 psi shop air source
  • Automatic shut-off at desired outlet pressure for unattended operation
  • Safety relief devices and pressure gauges included on both gas and air sides
  • Manual vent valve for venting gas pressure prior to disconnecting outlet line
  • Drive air filter and shut-off ball valve to manually stop booster
  • Drive air connection is 1/2" FNPT
  • Oxygen gas inlet and outlet connections are 1/4" FNPT
  • All components are mounted to the booster and tested prior to shipment