http://raleighheatingandairservice.com/how-to-know-if-i-am-low-on-freon/
Products Shown NuCalgon AC EasyDry and NuCalgon AC EasySeal
If you are low on Freon and your system is no longer under warranty, then a leak seal treatment may be your best solution instead of recharging with R22 Freon as the prices continue to skyrocket.
