System includes:
Aluminum cylinder 15 CF (CGA-870, 425 liters) 
Adjustable regulator with gauge, (0 to 15 LPM),
Standard mask and cannula
Padded cylinder bag
Duration chart, instructions
.
Cylinder specifications:
15 cu.ft./425 liters - 2216 PSI
16.5" x 4.38 diam. 5.1 lbs
Duration (10K ft.) @ 1.5 LPM = 4.7 hours