The MRCOOL O-18-HP-WMAH-230C-O Olympus 18K BTU 1.5 Ton 4th Gen Ductless Mini-Split Wall Mounted Air Handler is an indoor unit designed for efficient heating and cooling in ductless HVAC systems. It circulates conditioned air into the room while working with the outdoor heat pump condenser to maintain the selected temperature. Designed for MRCOOL Olympus mini-split systems, this wall-m... https://www.partshnc.com/mrcool-olympus-4th-gen-air-handlers-o-18-hp-wmah-230c-o