ECOSPA Thermostatic 1 Way Shower Valve Shower Valve Benefits Thermostatic Mixer Valve allows for a user set temperature that will remain constant regardless of any change in water pressure. e.g. due to a toilet being flushed, which would normally cause a fluctuation in temperature Anti-Scalding Device shower valves are pre-set at a safe temperature of 38C, which is especially useful for children or the elderly who generally have thinner skin, allowing them to shower safely without being scalded 1-Way Mixer this particular shower valve allows users to install a shower overhead (popular choice) or a shower kit Features 1-Way Thermostatic Mixer Valve, with 2 round handles 1-Way function allows installation of a shower overhead or showerkit Polished mirror chrome finish that.