The Hybrid Flex Inverter has the ability to cool up to 8 zones from a single outdoor unit. This new "Hybrid" is a blending of the complex VRF/VRV system with the simplicity of a multi-zone system to create a new Hybrid solution that shares the best of both systems. The Fujitsu Hybrid allows you to mix or match wall, duct type or ceiling cassettes in 156 different btu/h combination's making it the right solution for your home or business.