MRCOOL DIY25-3858C-O DIY 5th Gen 24K–36K BTU Line Set with Pro Cable is a 25-foot pre-charged line set designed for compatible ductless mini-split HVAC systems. It features 3/8-inch and 5/8-inch copper refrigerant lines that connect the indoor air handler to the outdoor condenser, allowing refrigerant to circulate efficiently for heating and cooling. The included Pro Cable supports el... https://www.partshnc.com/mrcool-diy-5th-gen-25ft-3-8-x-5-8-line-set-r-454b-diy25-3858c-o