Refrigerant Line Set, Mini Split Systems, Liquid Line Size (In.). 1/4 O.D. Flared Ends, Suction Line Size (In.). 3/8 O.D. Flared Ends, Length (Ft.) 35, Insulation Thickness (In.). 1/2, For Use With Air Conditioning and Refrigeration Systems, Includes Liquid Line and Suction Line.