A bailout cylinder is defined by its function, and may be carried in any convenient way.
The small "Spare Air" type is commonly carried in a pocket type holster which is strapped to the harness where it can easily be reached, usually somewhere on the front of a jacket style buoyancy compensator.
Larger bailout cylinders may be strapped to the back cylinder, (see Pony bottle), or suspended from the harness D-rings along the side of the diver as a side-mount, or sling cylinder.
A bailout cylinder is defined by its function, and may be carried in any convenient way. The small "Spare Air" type is commonly carried in a pocket type holster which is strapped to the harness where it can easily be reached, usually somewhere on the front of a jacket style buoyancy compensator. Larger bailout cylinders may be strapped to the back cylinder, (see Pony bottle), or suspended from the harness D-rings along the side of the diver as a side-mount, or sling cylinder.
Bailout bottle