Carrier Packaged Products 48VGUp to 16 SEER 48VRUp to 15.5 SEERUp to 8.5 HSPF 50VGUp to 16 SEER 50VRUp to 15.5 SEER 50ZHUp to 14.5 SEERUp to 8 HSPF 50ZPUp to 14.5 SEER 48VLUp to 14 SEER 48VTUp to 14.5 SEER 50VLUp to 14 SEER 50VTUp to 14.5 SEER 48NLUp to 81 AFUE 50NTUp to 81 AFUE 50NL 48NT