Constructed from solid brass, the Best Bathrooms Contemporary Bar Valve with Slide Rail Kit is a slim, stylish shower valve which features a pre-set maximum temperature (38°) & an automatic anti-scald device that shuts off the hot water should the cold water supply fail, ensuring that showering is safe & convenient. Neat controls at each end of the valve govern the temperature & flow of water to a modern shower handset. The stylish design of the mixer & slider rail kit will enhance the appearance of any modern bathroom. The Contemporary Bar Valve with Slide Rail Kit is compatible with combi boilers, gravity fed systems, unvented mains pressure systems & shower pumps, as long as the operating pressure is between 0.1 & 0.4 bar.