4 Ton Single Stage Split-System Heat Pump, Circuit Voltage: 208-230, Hertz: 60, Phase: 3, Department of Energy Guide SEER: 14, EER: 11.5, Stage: Single, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 8.68 lbs, Type: Air, Dimensions: 28-1/4''H x 31-3/16''W x 31-3/16''D, Weight: 197 lbs