Check the listing for details. Copper Pipe Tube Ø 1.8mm - 25mm Microbore Water Oil DIY Plumbing Central Heating. Condition: New, Made in China. Listed at 6.79 USD. Model: Copper Tube Material: T2 (99.9% pure copper) Outer diameter: 1.8mm - 22mm Color: copper Temperature range: -60℃～230℃; Features: High strength at low temperature, corrosion resistance, light weight, changeable shape, easy to connect, safe, non-leakage, non-combustible, no toxic gas generation, and environmental protection. The characteristics of copper tube: 1. High strength at low temperature 2. The copper pipe is strong and corrosion-resistant 3. Copper has the characteristics of economy, lightness, changing shape, easy connection, safety and so on. No leakage, no combustion, no toxic gas, corrosion resistance. 8. Environmental protection advantages. The recycling of copper is conducive to environmental protection.