Riobel Zendo 1/2 Inch Thermostatic & Pressure Balance Trim With Up To 3 FunctionsRiobel Zendo 1 2 Inch Thermostatic & Pressure Balance Trim With Up To 3 Functions RioWise technology maintains consistent water temperature and pressure for precise, reliable performance. Features RioWise valve technology stabilizes water pressure for steady temperature control even with up to 50% pressure drop No need for separate shut off or diverter valve for a cleaner shower wall design Temperature memory feature for convenient operation Supports