The Sirrus BSM4000 Amethyst SKAK4000 thermostatic cartridge is used in a range of different Sirrus showers including the Newteam Showerforce BSM range. For sale is the thermostat element which goes into this cartridge.
The wax thermostat element is the heart of the cartridge and is the part which regulates the temperature of the water, therefore if you are having problems with regulating the correct water temperature in your shower one of the possible problems would lay with the element.
This element is also used in the following models:
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