MRCOOL MC16-3858 24K BTU 16 FT 3/8" x 5/8" Mini Split Flared Line Set Kit is a refrigerant piping assembly designed to connect compatible indoor and outdoor ductless HVAC units. It works by providing dedicated refrigerant lines that allow efficient circulation between the indoor air handler and outdoor condenser, supporting effective heat transfer. Designed for use with compatible MRC... https://www.partshnc.com/mrcool-mc16-3858