MRCOOL MVP-48-HP-MUAH-230-00 VersaPro 4 Ton Split System Heat Pump Central Ducted Air Handler is an indoor HVAC unit designed to distribute conditioned air throughout a ducted heating and cooling system. It works by circulating air over the evaporator coil and delivering heated or cooled air through the ductwork when paired with a compatible VersaPro heat pump. https://www.partshnc.com/mrcool-versapro-split-system-heat-pump-air-handler-mvp-48-hp-muah-230-00