Plumbing fittings are essential components used in plumbing systems to connect pipes and manage the flow of water or other fluids. They come in various shapes and sizes, including elbows, tees, couplings, and valves, each serving a specific purpose. These fittings are typically made from materials like PVC, copper, or brass, chosen for their durability and resistance to corrosion. Proper installation of plumbing fittings is crucial for preventing leaks and ensuring efficient water flow. They are used in both residential and commercial settings, playing a vital role in drainage, water supply, and heating systems. Understanding the different types of fittings helps in selecting the right ones for any plumbing project.