4 Ton Inverter Stage Split-System Heat Pump, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER: 22, Stage: Inverter, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 173 oz, Type: Air, Dimensions: 43-3/4''H x 38-22/25''W x 36-22/25''D, Weight: 358 lbs ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***