Hey remember the R-12 refrigerant deliema. Dupont made a bundle on that one. Have you seen the price of the stuff lately...if you can even get it. The R-12 then required a license to own and use. It was illegal for the home owner to use or have it also.I hear the R-23 isn't much better and they are experimenting with a carbon type gas but it requires extremely high pressures of over 2000#. More license and restrictions...MORE COSTS!
