Mini Split Line Set, 50 ft Insulated Copper 1/4 x 3/8

Mini split line set with 50 ft copper tubing delivers extended reach for clean routing and fewer joints in ductless HVAC or heat pump installs. Built from C12200 copper and wrapped in 3/8 in PE+EVA insulation, it helps reduce condensation and energy loss while protecting lines outdoors and through walls. The kit is sized for common 1/4 in liquid + 3/8 in suction applications and includes key accessories to keep your installation moving without extra trips.

• Fits standard 1/4" liquid + 3/8" suction line setups for 0–12,000 BTU mini-split systems


• Delivers 50 ft C12200 copper lines designed to resist kinks and support tight routing through walls


• Includes 52 ft 4×16AWG cable to help avoid splicing and reduce connection points


• Reduces condensation with 3/8" thick PE+EVA insulation for weather-ready performance


• Speeds installs with drain line, wall sleeve, decorative cover, tape, and sealant putty included

Whether you’re finishing a garage, adding a backyard studio, or upgrading a multi-story run, this all-in-one mini split installation kit is built for long line-set distances and a tidy, professional-looking finish. Pre-matched tubing sizes and extra-long wiring help simplify planning, while thick insulation supports efficient operation across seasons. Keep your project on schedule with a kit that arrives ready to install—grab yours today and get your ductless system connected with fewer last-minute add-ons.

• Line set length: 50.0 ft / 15.2 m


• Copper material: C12200 (Cu 99.9%)


• High-pressure line OD: 0.3 in / 6.4 mm (1/4")


• Low-pressure line OD: 0.4 in / 9.5 mm (3/8")


• Insulation: PE + EVA foam, thickness 0.4 in / 9.5 mm


• Electrical cable: SJT FT2, 105°C, 300V, 4×16AWG; length 52 ft


• Net weight: 17.0 lb / 7.7 kg ±3% (with accessories)