Thermocore Systems Quad-Zone ENERGY STAR Ductless Mini Split Heat Pump Air Conditioner (9000BTU + 9000BTU + 9000BTU + 9000BTU) 19.5-22.5 SEER - 10.0 HSPF - ENERGY STAR / Certified by AHRI, ETL and C-ETL Quad Zone Air Handlers for Multi-Zone Placement / DC Inverter Pre-Charged w/ Eco-friendly R410A Refrigerant / Quiet Operation Includes (4) 15ft Insulated Copper Line-Sets / Toshiba or Mitsubishi Compressor Low Ambient Temperature Operation (5 F) / 208-230 Input Voltage