Delta Tetra™ 17 Series Valve Only TrimFamiliar geometries and subtle curves in the Tetra Bath Collection combine to bring a sleek, architectural look and feel to the bath. With separate handles for volume and temperature control, this Delta tub shower provides a more refined showering experience. Simply set the water at your preferred temperature and turn the shower on or off with the volume control handlewithout interrupting your set temperature. Create a luxurious shower experience with