I have done a few reverse converts as Steve describes with great success.

It still amazes me how much money some folks will spend to convert to a different refrigerant because it costs $10 or $15 per pound less. I went toschool in the fifties and sixties before the so called "new math." Maybe this is why I don't understand the math involved that causes someone to spend hundreds of dollars so that they can use refrigerant that costs $40 or $50 less per charge. I guess I'm just too old to have such math skills.

Have a great day,