Matt and John,
I finally decided to quit lurking and sign up on this forum since you guys are talking about me . The halon extinguisher that I have came from a local hobby shop called Wild Bills hobbies about 3 years ago. At the time he had 4 or 5 of them and since they were very dusty I assumed that they had been on his shelf for a really long time (maybe more than 5 years). I have used it for a wet start one time with no ill effects to my engine, but since it is very small and not refillable I prefer to use my 5lb CO2 most of the time. As I understand it Halon is illegal for most applications since the fumes it gives off will kill you if used in confined spaces, I also assume that because of this the little extingiushers are not manufactured any longer, but I may be wrong. I might be able to run home at lunch and get the manufacturer's name and address if you like.

Kevin Whitlow