If your A/C is three or more years old chances are you have the old refrigerant in it, The EPA sets the production limits every year. In 2012, they are reducing the limit from what it was supposed to be. Manufacturers are not taking bulk orders until they know how much they can produce. We currently charge $15.00/lb. Our suppliers are telling us the new costs can be as much as three times what we are paying now. Stay in touch to find out more Tom 954.783.8012