Search Search Search Sort by SEER2 Sort by SEER2 Sort by SEER2High to LowLow to High SEER2 Value SEER2 Value Reset Sort by HSPF2 Sort by HSPF2 Sort by HSPF2High to LowLow to High HSPF2 Value HSPF2 Value Reset Sort by AFUE Sort by AFUE Sort by AFUEHigh to LowLow to High AFUE Value AFUE Value Reset PH5Z Heat PumpUp to 13.4 SEER2Up to 11 EERUp to 6.7 HSPF2 PA5Z Air ConditionerUp to 13.4 SEER2Up to 11 EER 705C Air ConditionerUp to 13.4 SEER2Up to 11 EER 605C Heat PumpUp to 13.4 SEER2Up to 11 EERUp to 6.7 HSPF2 675C Gas ElectricUp to 13.4 SEER2Up to 11 EERUp to 6.7 HSPF2Up to 81 AFUE 575C Gas ElectricUp to 13.4 SEER2Up to 11 EERUp to 81 AFUE PH4Z Heat PumpUp to 13.4 SEER2Up to 11 EERUp to 6.7 HSPF2 PA4Z Air ConditionerUp to 13.4 SEER2Up to 11 EER 707E Air ConditionerUp to 16 SEER2Up to 11.5 EER 677E Gas ElectricUp to 15.5 SEER2Up to 11.5 EERUp to 7.5 HSPF2Up to 81 AFUE 607E Heat PumpUp to 15.5 SEER2Up to 11.5 EERUp to 7.5 HSPF2 577E HybridUp to 16 SEER2Up to 11.5 HSPF2Up to 81 AFUE