MRCOOL DIY-09-HP-WMAH-230C25 Ductless Mini-Split Air Handler is an indoor HVAC unit designed to deliver efficient airflow and precise temperature control for single-zone ductless systems. It works by drawing indoor air across the evaporator coil, where heat is absorbed or released, then circulating conditioned air throughout the room. Designed for use with compatible MRCOOL DIY mini-s... https://www.partshnc.com/mrcool-diy-4th-gen-wall-mount-air-handler-diy-09-hp-wmah-230c25