4 Ton Two Stage Split-System Heat Pump, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER2: 17, EER2: 13, Stage: Two, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 14.67 lbs 9 oz, Type: Air, Dimensions: 47-3/16''H x 35''W x 35''D, Weight: 309 lbs ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***