Mini Split Line Set 25 Ft, 1/4 x 3/8 Insulated Copper

Mini split line set 25 ft helps you connect indoor and outdoor units with reliable refrigerant flow and insulation for efficient HVAC operation. This dual copper tubing bundle includes 1/4 in and 3/8 in O.D. pipes wrapped in triple-layer insulation to protect against moisture, pressure, and temperature loss. Built from thickened copper made to ASTM standards, it resists kinks and flattening during routing for faster, cleaner installs.

Designed for installers and DIY upgrades, this insulated copper line set supports clean routing through tight spaces while helping maintain thermal performance from end to end. The paired high- and low-pressure tubes are sized for common mini split applications, and the multi-layer insulation helps shield the copper from jobsite wear, condensation, and temperature swings. Keep your next mini split or heat pump setup moving by choosing the length and sizes that match your unit—grab yours today.