Thermocore Systems Dual-Zone ENERGY STAR Ductless MiniSplit Heat Pump Air Conditioner (12000BTU+12000BTU) 21 SEER - 10 HSPF - ENERGY STAR / Certified by AHRI, ETL and C-ETL Pre-Charged w/ Eco-friendly R410A Refrigerant / Quiet Operation Dual Air Handlers for Multi-Zone Placement / DC Inverter / Variable Output Includes (2) 15ft Insulated Copper Line-Sets / Toshiba Compressor / 9000 BTU Covers up to 400sqft / 12000 BTU Covers up to 600sqft Low Ambient Temperature Operation (5 F) / 208-230 Input Voltage