Comfort thermostat concealed for 1 outlet: either shower head or handheld shower High-quality thermostat cartridge which controls the temperature evenly and precisely More safety: a button on the handle only releases hot water when required and prevents the temperature from becoming too high (SafetyStop) The second handle allows you to conveniently control the water volume Built to last: Brass internal components compliment a polymer trim plate for a surface that is resistant to dents, chemical corrosion, and mineral accumulation Includes handles, sleeve, function block, and escutcheon Bold contrast: Trendy matte black is a good fit for modern architecture