High-Altitude Oxygen Support System

The HOSS surpasses anything on the market today when it comes to refilling (jamming) parachutist oxygen systems.

J3Seven is a provider for Breathing Systems and integrated systems maintenance solutions.

  • Veteran Owned & Operated
  • 100% Australian
  • Premium technical support

High-Altitude Oxygen Support System

With the ability to fill 15 bottle assemblies at the same time, plus a faster rate to fill, your organisation will experience an 80% reduction in time spent compared to refilling your bottles individually.

The lightweight, portable transport carrier exceeds all requirements for oxygen handling and accommodates either the PHAOS or the Phantom Systems. The carrier is waterproof, crush-resistant, o-ring sealed, and comes with wheels, automatic pressure equalisation valves and fold down handles for easy transport.

The HOSS has a built in 10-micron filter, a Swagelok QC4 quick-disconnect inlet fitting, 360 naval brass manifolds and is easily connected to the valves and fittings of the PHAOS and Phantom bottle assemblies without the use of additional fittings or adapters.



  • Oxygen charge whip option.
  • Mesh accessory storage sleeve option.
  • Tough case colours (tan, OD, green and black).
  • Custom bottle adaption/configuration.
  • Custom logo placement.



  • Weight: 25.4kg empty, 62.5kg with bottles.
  • Dimensions: 673mm L x 673mm W x 641 mm D
  • Capacity:
    • Phantom bottle: 410L at 3000psi (207 bar).
    • PHAOS bottle: 1.44L at 1800psi (124 bar).