Any Size Copper Tube 2mm- 1/4″ – 12mm Inch Diameter Type K Soft Coil All purple copper tubes are pure purple copper, T2 material 99.9%, quality assurance, can be tested!!!! Purple copper tube features.1. High strength at low temperature2. Copper tubes with strong corrosion resistance3. Copper is lightweight4. Copper can change shape5. Copper is easy to connect6. Copper is safe. Non-leakage, non-flammable, non-toxic gas, corrosion-resistant7. Environmental advantages, the recycling of copper is conducive to environmental protection ♥ Packaging includesAccording to your choice Thank you for browsing our products ♥