MRCOOL DIY-12-HP-WM-115D25-O Ductless Heat Pump Mini Split System is a high-efficiency HVAC solution designed to provide year-round heating and cooling for a single room or zone. It works by transferring heat between the indoor air handler and outdoor condenser using advanced heat pump technology, delivering efficient temperature control in all seasons. https://www.partshnc.com/mrcool-diy-5th-gen-12k-btu-single-zone-mini-split-model-diy-12-hp-wm-115d25-o