48VG Performance 16 SEER 2-Stage Packaged Air Conditioner and Gas Furnace System with Puron (R-410A) Refrigerant Single and Three Phase 2-5 Nominal Tons (Sizes 24-60) 48VG Performance 16 SEER 2-Stage Packaged Air Conditioner and Gas Furnace System with Puron (R-410A) Refrigerant Single and Three Phase 2-5 Nominal Tons (Sizes 24-60)