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 +/-3degrees F (+/-1.6degrees 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 Monitor 17 Series H2Okinetic Tub & Shower Trim