Grohmix Grohtemp amp Grohtherm thermostats operate by means of a specially developed expansion wax-element that automatically mixes incoming water to yield the desired preset temperature In the event of a cold water supply failure the unit shuts off automatically thus avoiding and hazard of scalding These thermostats may be employed with any type of pressurized hot water supply system and are well suited for use with pressurized instantaneous heaters By means of their exact and rapid control Grohe thermostats help to save water and energy Grohmix Grohtemp amp Grohtherm thermostats are also 100% child safe A safety stop at 100 degrees Fahrenheit provides reliable protection from scalding If a higher temperature is desired the safety limit can be exceeded Paraffin cartridge 1/2 in NPT female connections Built-in check valves Service stops Temperature control only Separate volume control required Requires Twin Ell for shower/tub combinations with diverter tub spout Flow Rate 11 gpm 45 psi Code Compliance ASME/ANSI A112 18 M ASSE Standard 1016 ANSI/NSF Standard 61 ADA Compliant - Buy Now or get More Info on Grohe Bath - Click Here To Order