The GSX130601 Goodman 5.0 Ton Air Conditioner Condenser uses the chlorine-free Refrigerant R-410A to help prevent damage to the Ozone Layer. This Unit is equipped With sound-dampening features to provide operating sound levels are among the lowest in the Heating and Cooling industry. Using high-quality components, the Goodman GSX130601 Air Conditioner condenser is rated at 14 SEER and will help reduce energy consumption throughout the life of the system.