The Serin 2-Handle pressure balance Integrated Shower Diverter Trim by American Standard is perfect for the contemporary bathroom in design and functionality. When paired with the exclusive Flash Rough-in Integrated Shower Diverter Valve, sold separately, you can easily alternate between water outlets. The Serin Trim coordinates beautifully with the entire Serin Collection. Requires Flash Rough-in Integrated Shower Diverter Valve RU520.