The Senville SENA-24HFMO-IZ16 is a 24,000 BTU wall-mount indoor air handler unit designed specifically for use in compatible Senville multi-zone mini split systems. Part of Senville's Build Your Own program, it can be freely mixed and matched with other indoor unit styles on the same multi-zone outdoor condenser — giving you the flexibility to create a fully customized, zone-by-zone heating and cooling solution for larger rooms in your home or commercial space. Includes a 16 ft installation kit. Uses R-454B refrigerant.