Ideal for retrofit or renovation, the GROHE Retro-Fit Shower System installs easily and quickly. Simply replace the existing shower arm and add the system components without altering any in-wall plumbing. Once installed, it?s easy to use; a quarter turn of the diverter lever (located at the bottom of the shower bar) switches water flow from showerhead to hand shower or you can have both outlets on simultaneously.GROHE StarLight ? a flawless, robust, long-lasting finish designed to be extremely resistant to dirt and scratchesGROHE DreamSpray features advanced shower engines to deliver precise and consistent water distribution throughout any spray pattern for an unparalleled and custom showering experienceSpeedClean anti-lime system: Removes limescale with a simple wipe of a finger to maintain a like-new performance.