A wall-mounted indoor unit is the most common type of air handler for ductless systems. The Cooper & Hunter Olivia Series is a high-performance example. These units are placed high on the wall to circulate air effectively across the room. You can find them in our Wall Mounts 2 Zones and other multi-zone categories. They are easy to install with just a small hole through the wall for the lineset. Their sleek, modern designs are made to fit seamlessly into your home's decor.