The MRCOOL A-12-HP-WMAH-115D-O Advantage 5th Gen 12K BTU Air Handler is an indoor HVAC component designed for compatible MRCOOL mini-split heat pump systems. It receives conditioned refrigerant from the outdoor unit and circulates heated or cooled air throughout the space using an internal blower fan. Designed for 12,000 BTU applications, this air handler supports efficient temperatur... https://www.partshnc.com/mrcool-advantage-5th-generation-12k-btu-air-handler-a-12-hp-wmah-115d-o