This Two-Place 4 cu.ft Aviation Oxygen System includes:
Aluminum cylinder w/CGA-870toggle valve
4 cu.ft./113 liters - 2216 PSI
8.4" x 3.21 diam. 1.6 lbs
Adjustable 12 position regulator (0 to 15 lpm)
2 standard masks, 2 nasal cannulas, Shoulder bag'
Duration chart and instructions

Duration (10K ft.) @ 1.5 LPM = 75 min.for one, 37 minutes for two. 
Oxymizers will double duration time.

Adjustable regulator with contents gauge, (0 to 15 LPM), barbed outlet, brass interior

Splitter with connecting hose

2 Standard masks, 2 standard nasal cannulas

Heavy duty nylon carrying case with shoulder strap embroidered with theAir-King ™ logo

Duration chart, instructions