Grohe 19837ZB0 is part of the GenevaCollection and features a simple and elegant design to match nearly any decor, with SilkMove technology for effortless operation and long life. The Grohe 19837ZB0 is a Volume Control Trim with a Lever Handle. Now you can easily control the water volume with a single handle. Designed to work with 1/2" and 3/4" volume control rough-in valves. Trim has an Oil Rubbed Bronze Finish for an authentic or rustic appearance.