This class 125 tee is a brass t-shaped pipe fitting with female National Pipe Taper (NPT) threads on the run and branches for connecting and branching male pipes. All three ends are the same size and connect with NPT threads to create tighter seals than straight threads. This class 125 tee is made from brass, which is more economical, machinable, and offers greater corrosion resistance than steel. Class is a standard relating to tolerance, construction, dimension, and wall thickness, but it is not a direct measurement of maximum working pressure. This fitting meets standards ANSI/ASME B16.15, ASME B1.20.1, ASTM B584, and ALLOY C83600 for quality assurance. Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).