13 SEER Performance R-410A Chlorine-Free Refrigerant Three-Phase The Goodman brand GSX13 three-phase unit uses the chlorine-free refrigerant R-410A and features operating sound levels that are among the best in the heating and cooling industry. Warranty Protection*
Up to 18 SEER Performance R-410A Refrigerant ComfortNet™ Communication System
Up to 16 SEER Performance R-410A Refrigerant ComfortNet™ Communication System
Outstanding Warranty Protection*