This 1/2 Inch Galvanized Schedule 80 Cross is a plumbing fitting that allows you to connect four sections of galvanized pipe together. Each of the four connections has female threaded connections measuring at 1/2 inch. Galvanized pipe and fittings are used in a variety of different plumbing applications. They can be used in hot water and steam applications, but cold water applications are the most common. Galvanized constructed products are very durable and have the ability to resist corrosion and rust Even though the galvanized construction is extremely durable, they should not be used in underground applications.