American Standard Ductless Air Conditioners & Heat Pumps Search Search Search Ductless System Location Ductless System Location Indoor Ductless (18)Outdoor Ductless (7) Ductless System Type Ductless System Type Multi-Zone Ductless (7)Single-Zone Ductless (18) 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 ENERGY STAR® ENERGY STAR® Yes (7)No (18) NAYUp to 24.6 SEER2 NAXWSTUp to 24.6 SEER2Up to 12.8 HSPF2 MSZ-EF NAXWPHUp to 33.1 SEER2Up to 13.5 HSPF2 NAXWPH NAXWSTUp to 24.6 SEER2Up to 12.8 HSPF2 NAXWMTUp to 18 SEER2Up to 10 HSPF2 PEADUp to 19.4 SEER2Up to 12.1 HSPF2 PEAD NAXDKS NAXDKS NAXCKSUp to 16 SEER2Up to 9.6 HSPF2 NAXCKSUp to 16 SEER2Up to 9.6 HSPF2 NAXAMTUp to 17 SEER2Up to 13.6 HSPF2 NAXFKSUp to 28.2 SEER2Up to 13 HSPF2 NAXFKSUp to 28.2 SEER2Up to 13 HSPF2 NAXUKSUp to 22.3 SEER2Up to 13.3 HSPF2 NAXMMXUp to 22 SEER2Up to 11.5 HSPF2 NAXSKSUp to 16 SEER2Up to 9.6 HSPF2 NAXSMTUp to 18 SEER2Up to 10 HSPF2 NAXSPBUp to 33.1 SEER2Up to 13.5 HSPF2 NAYSSTUp to 24.6 SEER2 NAXSSTUp to 24.6 SEER2Up to 12.8 HSPF2 NAXFKSUp to 28.2 SEER2Up to 13 HSPF2 4MXC8 Cassette Indoor UnitUp to 16 SEER2