Grohflex Grandera Dual Function Thermostatic Trim With Control Module GROHE StarLight finish for scratch and tarnish-resistant surfaces for a lifetime of beauty GROHE TurboStat technology delivers water at a desired temperature within a fraction of a second and keeps it constant for the duration of the shower For shower/tubs with non-diverter tub spout or for 2 shower outlet applications Integrated volume control 2-way Diverter function GROHE TurboStat technology delivers water at a desired temperature within a fraction of a second and keeps it constant for the duration of the shower. Integrated volume control 2-way diverter function Requires GrohFlex Universal Rough-In Box (35 026)