Delta T17T438 Lahara Tempassure 17T Series Tub and Shower Trim, Chrome 2.5 gpm, 9.5 L/min Must purchase rough-in model R10000-UNBX separately to complete the unit Handle included Inspired by the beauty and bliss created by waves Thermostatic cartridge measures and monitors the temperature of the water and automatically adjusts to maintain a more precise water temperature Plastic