Simple style: The AXOR Citterio collection is understated yet unmistakably luxurious, with distinctive flat surfaces that brilliantly reflect the light High-quality thermostat cartridge which controls the temperature evenly and precisely More safety: a button on the handle only releases hot water when required and prevents the temperature from becoming too high (SafetyStop) The second handle allows you to conveniently control the water volume Built to last: Brass internal components compliment a polymer trim plate for a surface that is resistant to dents, chemical corrosion, and mineral accumulation Includes handles, sleeve, function block, and escutcheon Classic style: Timeless brushed nickel fits particularly well for transitional architecture Required parts: This product requires the iBox Universal Plus Rough (Part No. 01850181) for Installation Installation notes: Hansgrohe recommends a licensed plumber install this product