Which color identifies Type K copper tubing?

Type K copper tubing is identified by the color green. This color coding system helps plumbers and technicians quickly distinguish different types of copper tubing based on their wall thickness and applications. Type K is known for having the thickest walls among the common types, which makes it suitable for underground installations and applications where higher durability is required.

The significance of color coding in plumbing is crucial since it ensures that professionals can select the appropriate type of tubing for specific tasks, enhancing efficiency and safety in plumbing installations. Understanding these distinctions is key for students and aspiring plumbers, as it underlines the importance of proper material selection based on building codes and the intended use of the piping system.