What is the identifying color for Type M copper?

Type M copper, often used for residential plumbing, is identified by its red or pink color. This color coding helps differentiate Type M from other types of copper pipes, such as Type L and Type K, which have different wall thicknesses and applications. Type M is characterized by its lighter gauge, making it suitable for lighter plumbing applications like water supply lines.

The red or pink color is a visual standard used to ensure that contractors, engineers, and maintenance personnel can easily identify the pipe's type during installation or repairs. This identification is crucial for ensuring proper installation practices, as using the incorrect copper type can lead to system failures or safety hazards due to pressure limitations.

Other color designations correspond to different types of copper pipes—like blue for Type K and yellow for Type L—each indicating varying thicknesses and corresponding applications. Knowing these color codes is vital for professionals in the field to maintain the integrity and safety of plumbing systems.