This configuration, the Bravo Milano Series 4 Zone 42k (18k x 4), is designed for large homes with multiple large rooms. It is a powerful option in our Quad-Zone collection. With four 18k units, it can cool a massive home with ease. Each air handler is part of the UFC Multi-Zone line for mounting flexibility. This system allows for precise temperature control in every large room. it is a comprehensive solution for total home climate control.