18,000 BTU Concealed(Duct) Indoor Inverter Mini Split Heat Pump Unit, Volts:208/230, Hertz:60, Phase:1, HSPF Rating:10.0, SEER/EER:18.0/12.0, Refrigerant:R-410A (Factory Charged With 56.45 Ounces), Connections:1/4" X 1/2" Flare, Rated Cooling BTU:15,300, Rated Heating BTU:18,700, Type:Air Source, Dims:7-7/8"H X 35-1/2"W X 24-1/4"D, Weight:79 Lbs, In Mfg Box, Made In China. For Use With Outdoor Model:4TXK8518A10N0AA - (Not Included), Wired Thermostat-Included