Hudson Reed Traditional Dual Exposed Thermostatic Shower Valve A3091E Product Details Thermostatically controlled. Built in anti-scald device. Separate controls for flow and temperature Suitable for water systems between 0-1 and 4 bar pressure. Suitable for combi boilers and gravity fed systems. Suitable for unvented mains pressure systems. Suitable for use with shower pumps. Manufactured from solid brass. Co-ordinated tap ranges available. All Hudson Reed products are guaranteed for 10 years against manufacturing defects. Additionally we guarantee the surface finish for 10 years.