American Standard Thermostatic Tub/Shower Rough-In Valve Body, Cold Expansion PEX Inlet Connection, Cold Expansion PEX Outlet
This single-handle thermostatic mixing valve allows you to select the water temperature for your shower head and body/side sprays. Once set, the temperature remains constant even if the water pressure changes, like when someone flushes a toilet. Requires a separate on/off volume control.