25FT Mini Split Line Set,Coil Line Set HVAC Refrigerant with Nuts(1/4+3/8).Includes - 3/8" & 1/4" OD Copper Tubing, 3/8" Thick Insulation, Flared Nuts - for DIY Mini Split AC/Heat Pump Installation

Long-Lasting Copper Construction: Mini-split line set crafted from premium 0.6"/0.55" thick-walled copper tubing (3/8" & 1/4" OD) for superior crush resistance and a perfect, leak-free seal. Ensures maximum durability and efficient refrigerant flow for years of reliable performance. | Superior 3-Layer Armor Insulation:25 Ft. Mini Split Line Set features a thick 3/8" white PE foam insulation that is flame-retardant, UV resistant, and prevents condensation drips. This triple-layer shield protects your walls and equipment from the elements, extending your system's lifespan. | Built for Extreme Climates, Year-Round: The 1/4" & 3/8" O.D. Flared Copper Tubing Pipes confidently operates in scorching heat and freezing cold (-22F to 221F). Universal refrigerant compatibility and a protective coating guard against UV rays and moisture, ensuring peak efficiency in any season. | All-in-One Installation Kit: Get everything you need in one box! The 25 ft seamless copper pipes kit includes refrigerant lines, drain hose, wall sleeve, insulation foam, and more. Saves you time and money on separate purchases and simplifies your DIY mini-split project from start to finish. | Universal Compatibility: Designed as a direct replacement for most mini-split systems requiring 1/4" and 3/8" line sets. A perfect fit for residential and commercial installations in bedrooms, offices, restaurants, and more.