The Delta brand lives by three tenets: water has the power to transform the way people feel every day, there can be magic in simple solutions and innovations flow from human insight.Features:Thermostatic mixing valveBrass bodyThermostatic element senses the outlet water temperature and reacts to maintain a constant delivery temperature even under changing flows or variations in supply temperatures or pressuresRegulating piston made from Engineered polymerOutlet flow reduced to a trickle in the event of a cold water supply failureSnap-on cover over a spindle mechanism that requires a special tool to adjust temperature. The special tool is provided with each valve.Inlets/outlets: 1/2" copper sweatAssembly Required.