The GROHE Concetto Pressure Balance Valve Trim with Cartridge combines a sleek design and precision performance for the well-appointed bathroom. Concetto is equipped with a double ceramic pressure balance cartridge for consistent water temperature and smooth, flawless operation. Requires GrohSafe 3.0 Rough-in Valve, sold separately. GROHE, 144682431, Trim, Series: 14468, Concetto Collection, 3 gpm Top/5.2 gpm Bottom Shower Flow Rate, 1 Handles, Pressure Balance Valve, 45 psi Pressure, Wall Mounting, Zinc, Matte Black, 171 mm H x 158 mm W x 78 mm L Dimensions, Import