Samsung Single Zone Heat Pump Split System Indoor Unit, Duct S Series, 208 to 230 V, 19 A, 153 W, 60 Hz, 1 ph, 18000 to 20000 Btu/hr, 841 cfm, 12 EER Rating, 18.3 SEER, 8.9 HSPF, Pipe Connection, Twin BLDC Rotary Compressor, R-32 Refrigerant, Inverter Drive, 40 dBA Sound Level, Steel, Finish: Galvanized, 64 to 90 deg F, 29-1/8 in Overall Length, 51-1/4 in Overall Width, 9-15/16 in Overall Height