Moen 62300 IPS Posi-Temp Tub & Shower Rough-In Valve

The Posi-Temp Pressure Balancing Valve is an important part of creating your ideal bath and shower unit. You'll never experience an irritating hot or cold surge in water temperature - or the shock associated with it. Even a dishwasher running or a toilet flushing won't disrupt the comfort of your shower.