I need to confirm some information and what I 'm finding on the net is not helping.

All steel cylinders have 5 year hydro and no dead date.

Fiber wrapped (composite ) cylinders before 2003 have a 3 year hydro cycle and those after Jan 2003 have a 5 year cycle.

All fiber cylinders expire after 15 years.


Do you have to have a professional change out the reg on a fiber tank?
If I have a crossfire fiber tank dated Mar 05 it would need a hydro next march?