Delta T17438-H2O Lahara Monitor 17 Series Tub and Shower Trim, Chrome 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 Monitor 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 2.00 gpm @ 80 psi, 7.6 L/min @ 550 kPa maximum water usage Plastic