On Sat, 1 Jul 2017 22:36:56 -0400, Ed Pawlowski wrote:


I thought you read labels. The date is stamped on the collar and it is
good for 12 years. It can be re-certified but I don't know of any place
that does it.

Buy or get an old tank from CL, then exchange at BR to have a newer
tank. Can't imagine they use a "really" old one.