This 50 ft insulated mini split line set is designed to support reliable performance in ductless air conditioning systems. It includes a 3/8" liquid line and a 5/8" suction line, both constructed from durable copper and pre-insulated to help reduce heat transfer and condensation. The line set is compatible with mini split systems in the 24000 BTU, 30000 BTU, and 36000 BTU range that require 3/8" x 5/8" connections. It can be used for new installations or as a replacement line set in existing systems. The flexible copper tubing allows for easier routing through walls and around obstacles, helping simplify the installation process. The insulation is designed to support consistent operation by helping maintain proper temperature conditions along the lines. Suitable for residential and light commercial applications, this line set provides a dependable solution for ductless mini split installations.