Red Tee is a term commonly used in the context of plumbing and piping systems. It refers to a type of pipe fitting that has three openings in the shape of a "T", with one of the openings having a larger diameter than the other two. The larger opening is typically used for connecting a larger pipe or tubing, while the two smaller openings are for connecting smaller pipes.

The main function of a Red Tee is to allow for the branching off of a pipeline into two separate directions at a 90-degree angle. This type of fitting is commonly used in plumbing systems to create a T-shaped junction where fluid flow needs to be redirected or distributed to two different lines.

Red Tees are available in various materials such as PVC, copper, brass, and stainless steel, making them suitable for use in a wide range of applications across different industries. They are often used in water supply systems, heating and cooling systems, as well as in industrial processes where branching of pipelines is necessary.

Overall, the Red Tee plays a critical role in ensuring efficient and effective distribution of fluids in piping systems, allowing for seamless branching and redirection of flow in a controlled manner. Its versatile design and functionality make it an essential component in plumbing and piping installations where branching connections are required.