3.5 Ton Single Stage Split-System Heat Pump, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER: 14, EER: 11.5, Stage: Single, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 149 oz, Type: Air, Dimensions: 35-1/6''H x 33-3/4''W x 33-3/4''D, Weight: 221 lbs