On Sun, 3 Jan 2010 10:44:01 -0500, "Wilbur Hubbard"
wrote:

One needs no licence to purchase and use R34 refigerant. It's available in
most any auto parts store and Wal Mart and K Mart.

It's actually called R134a, the refrigerant used in most automotive
air conditioners. You still need a gauge set, fittings, can tap,
vacuum pump, leak detector and a modicum of knowledge to do the job
properly.