Delta T17238-SSH2O Lahara Monitor 17 Series Shower Trim, Stainless H2Okinetic Technology sculpts the water into a unique wave pattern, giving the feeling of more water without using more water WaterSense certification promotes water conservation Pressure balance valve keeps water temperature within a safe 3 F (1.6 C), helping to protect you from sudden changes in hot or cold water pressure Trim kit only, must order MultiChoice Universal rough-in separately to complete the unit Dial adjusts temperature - Handle adjusts volume Plastic