tee, in plumbing and piping terminology, is a fitting shaped like the letter “T”. It has three openings, two of which are typically at 90-degree angles to the third. This allows for the branching of pipes in a plumbing system. Tees are crucial for directing the flow of fluids in different directions, making them a fundamental component in various plumbing and piping configurations. They come in various sizes and materials, ensuring compatibility with different types of pipes and applications. Tees are used in a wide range of plumbing systems, including water supply, drainage, and HVAC (heating, ventilation, and air conditioning).