Fittings/couplings serve different purposes in connecting plumbing components. In the realm of commercial kitchen appliances, fittings play a crucial role in ensuring the seamless functioning of the plumbing system. Within commercial kitchens, commonly utilized plumbing fittings encompass elbow fittings, tee fittings, couplings, reducers, and adapters. Each fitting serves a distinct purpose, designed specifically to connect pipes, tubes, and other elements within the plumbing system.