Toshiba U2 compact cassette 4-way dual split air conditioner 9000+9000 BTU inverter A++ external unit 5.2 kWToshiba U2 compact cassette 4 way dual split air conditioner 9000+9000 BTU inverter A++ external unit 5. 2 kW The air conditioner kit is equipped with the following indoor units: 2 x 9000 BTU Ideals for rooms from 15 to 25 sqm with an average height of 2. 7 m In Toshiba's Natur32 range we find the compact U2 Multi cassette : new in functionality and design compared to the models that preceded it, it stands out for its compactness and versatility ; it