Grohe 35010EN1 Satin Nickel Concetto Shower Trim Kit. This Shower Trim is designed to upgrade the performance of your homes old or new shower system. This Shower Valve Trim features an escutcheon plate that secures to the wall and hides any holes left from installation, an easy-control metal handle, a soothing and reliable shower head and all necessary mounting hardware. Note that the rough-in shower valve is sold separately and will be needed for complete installation. This Satin Nickel Concetto Shower Trim Kit also features sophisticated lines and an elegant transitional design that gives your homes bathroom that timeless appeal. This Trim also includes a single-function pressure balancing cartridge with back to back capability. The PBV Cartridge maintains water pressure and gives your shower system efficient performance by saving water without sacrificing pressure. The Grohe 35010EN1 Shower Trim Kit comes with a limited lifetime warranty, its ADA approved and is designed to perform and deliver at a high level even after years of use.