The Spears® MA0101-010-3 is a 1" 3-Port Manifold Tee SWVL x MIPT x SWVL PVC. Tees allow a line to be split into two separate lines with a 90-degree connection. Tees can also be used to connect two lines into one main line. They are also often used for PVC structures. It is a genuine Spears product.