Pioneer Air Conditioner WYS012A-19 Wall Mount Ductless Inverter+ Mini Split Heat Pump, 12000 BTU-110/120V 4.4 out of 5 stars 2,907 COSTWAY 12000BTU Mini Split Air Conditioner& Heater,17 SEER 115V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft., Energy Efficient Inverter AC with Heat Pump & Installation Kit (12000BTU, 115V, 17 SEER)