Cast iron tees connect pipes where they intersect at the center of a structure. Cast iron fittings have a higher tensile strength than aluminum fittings. These fittings have a galvanized finish that provides some rust resistance, making them suitable for indoor or outdoor use. Please note: Image may NOT be accurate representation of actual size of product. | Worldwide Sourcing Galvanized Pipe T-Shirt | Size 1-1/2"