Delta Tetra TempAssure 17T Series Integrated Diverter Trim with 3 SettingFamiliar geometries and subtle curves in the Tetra Bath Collection combine to create a sleek, architectural look and feel for the bath. Delta showers with TempAssure thermostatic valves are designed to prevent sudden and unsafe changes in water temperature caused by running water elsewhere in the home. With the MultiChoice Integrated Shower Diverter, you can set your preferred water temperature once and simply turn the shower on or off with the volume