Installation Kit 3/8-5/8 for Ductless Mini Split Air Conditioner Heat Pump Systems Copper Line Set and Wire 23 Ft Copper Line Set and Wire for Ductless Mini Split Air Conditioner and Heat Pump Systems Insulated Pre-Flared with Nuts Line Set: Length: 23 Ft. Liquid Line: 3/8"; Suction Line: 5/8"; Thickness of Insulation: 3/8"; Pre-Flared with Nuts Control Cable: Length 23 Ft, Color Coded, Stranded Fits all mini split systems that require 3/8-5/8 Line Set (Please verify line set sizing with equipment data sheet)