Voted No. 1 in BathroomThe following video is a simple step by step guide to servicing the cartridge used in the Bristan Easitherm series of EXPOSED MIXER SHOWERS. The Easitherm exposed was distinguished by it's 'wing' shaped valve housings on each side of the valve.
The steps will show you how to remove the cartridge from the valve body, remove the pistons and replace the flow valves.
You can find the cartridge for this product here.