Rook TempAssure Thermostatic Valve Trim with Three-Function DiverterCombining a contemporary, masculine edge with nods to early 1900s traditionalism, the Rook bath collection is an arresting, modern interpretation of a stately aesthetic. This TempAssure thermostatic valve trim with three function diverter uses a thermostatic wax element that maintains the outlet temperature to + 3. 6 degrees F. The main lever handle controls the temperature only with a maximum handle rotation of 90 degrees, while a separate lever