has any one tried i believe it might be called freeze 12 to charge a/c

 

I used a product called Envirosafe (propane based) to recharge mine last year. It worked good, but lost pressureat the end of the season. I wil be adding some more when the temps get unbearable. If you order some, get as much as you can use/"share" since they charge a flat $25 haz-mat fee to ship.