"Terry Coombs" fired this volley in
:

You didn't look very hard ... by just entering "r22 replacement" in
a
startpage rearch box i got a bubch of hits . Here's one that looked
good to me ...
http://www.comstarproducts.com/rs-44-refrigerant

Yeah... and there are a couple of "homebrew" refrigerants that come
close-enough to serve, too.

This guy is one of those who DOESN'T search -- he just asks on a forum,
and hopes someone will _give_ him the answer.

LLoyd