Delta Tetra™ 17T Series Valve OnlyFamiliar geometries and subtle curves in the Tetra Bath Collection combine to bring a sleek, architectural look and feel to the bath. Separate handles for volume and temperature control allow you to set the water at your preferred temperature and turn the shower on or off with the volume control handlewithout interrupting your set temperature. Delta showers with TempAssure thermostatic valves are engineered to make sure you dont experience a sudden