LG, KUSXB121A, Outdoor Unit, 16500 Btu/hr Heating, 208/230 V AC, 1 pH, 60 Hz Power Source, 988 cfm Flow Rate, 12.20 EER, 21.7 SEER, 10.1 HSPF, R-32 Refrigerant, 3/8 in Suction Line, 1/4 in Discharge Line, 52 dBA Sound Level, 65.6 ft Maximum Piping Length, 21-1/2 in H x 11-13/32 in W x 30-5/16 in L Dimensions