The MRCOOL DIY-MULTI3-18HP230D-O DIY 5th Gen 18K BTU Mini-Split Heat Pump Condenser is an outdoor HVAC unit designed for use with compatible MRCOOL DIY multi-zone ductless air handlers. It works by circulating refrigerant between the condenser and multiple indoor units, transferring heat to provide efficient cooling and heating in different zones. Ideal for residential applications, t... https://www.partshnc.com/mrcool-diy-5th-generation-multi-zone-mini-split-condenser-diy-multi3-18hp230d-o