37MAHAUp to 27.5 SEER2Up to 14.8 HSPF2 37MGHAUp to 25 SEER2Up to 11.3 HSPF2 615PHA 37MBRAUp to 20 SEER2Up to 10.4 HSPF2 37MGRAUp to 25.2 SEER2Up to 10.4 HSPF2 37MARAUp to 26 SEER2Up to 13.9 HSPF2 615AHA 45MBAA 45MBDA 45MCFA 45MBFA 45MBCA 45MCCA 37MHRAQUp to 22.4 SEER2Up to 9.4 HSPF2 37MHRACUp to 22.2 SEER2 45MHHAQ 45MHHAC 37MBHAUp to 21.3 SEER2Up to 11.1 HSPF2