BAI 0106 Concealed Thermostatic Shower Mixer/Valve 2-3 Functions (Round Knobs) Delivers precise, consistent temperature control and a generous flow rate Thermostatic valve allows user to set and maintain precise temperature One diverter with 2 - 3 functions, laser printed details Designed to fit into standard 3.5" frame wall Concealed brass body construction, stainless steel faceplate