The MRCOOL DIY-18-HP-WM-230C25 is a ductless mini-split heat pump system designed to provide efficient heating and cooling for residential and light commercial spaces. It operates by transferring heat between the indoor and outdoor units through a refrigerant circuit, delivering conditioned air without requiring traditional ductwork. The system is used with compatible indoor air handl... https://www.partshnc.com/mrcool-diy-4th-gen-e-star-18k-btu-ductless-mini-split-heat-pump-diy-18-hp-wm-230c25