Well actually I meant R-12 like my 1992 Mazda uses. I think R-22 is a type
of "freon" used before R134 came around in aviation A/C systems. JC

"Famous Amos Moses®" wrote in message
...
On Sun, 31 Aug 2003 17:01:28 GMT, "Helimech"
wrote:

Are the air conditioners used on boats R134 or R12?

Newer ones R134....older R22. R12 is a refrigeration....