4 Ton Three Stage Split-System Communicating Air Conditioner, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER2: 15.2, Stage: Three, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 130 oz, Type: Air, Dimensions: 31''H x 33-3/4''W x 33-3/4''D, Weight: 192 lbs **Compatible With Econet Enabled Units**