Tube Fittings are mechanical components that are used to connect and seal tubes or pipes in a fluid system. They are widely used in various industries such as plumbing, HVAC, and manufacturing. Tube fittings can be made of different materials such as brass, stainless steel, plastic, or copper. Tube Fittings come in various types, including compression fittings, push-to-connect fittings, barb fittings, and flare fittings.