Precision and Durability Designed specifically for mini split air conditioning systems, featuring 3/8 inch and 1/4 inch outside diameter copperaluminum tubing with zero tolerance fit for performance. Thick 0.5 inch walls provide leakproof reliability, longlasting strength, and thermal conductivity. Built to perform in demanding residential or commercial environments. Complete Protection Advanced 3/8 inch thick, triplelayer insulation safeguards copperaluminum lines against heat loss and damage. Embossed polyethylene film combined with weatherresistant foam offers flame retardance, enhanced heat insulation, and effective condensation control. Helps protect surrounding walls and equipment while extending the lifespan of your mini split system. AllWeather Performance Suitable for extreme temperatures ranging from 22°F to 221°F, fully compatible with all refrigerants. UV resistant coating protects against summer sun exposure, while moisture barriers prevent damage during cold, wet winters. Maintains consistent efficiency in any climate, ensuring yearround operational stability. Complete Accessory Kit Includes all components for straightforward installation: refrigerant pipes, drain hose, wall sleeve, insulation foam, and more. All parts are designed for precise fit and system compatibility, reducing installation time and ensuring reliable performance. Practical Applications Ideal for installing mini split AC systems in homes, offices, and small commercial spaces where durability and weather resistance are essential. for replacing existing refrigerant lines in older systems, improving efficiency and preventing leaks. Reliable choice for outdoor units exposed to sun, rain, or freezing temperatures, ensuring performance across all seasons.