The HepVO is a hygienic, self-sealing valve designed to prohibit the escape of foul sewage smells into the air. This slimline fitting is ideal for installation in confined spaces, such as under baths and shower trays, or under sinks to free up storage space. It can be used in place of a traditional water trap and prevents foul sewer air from entering a building. The valve comes in a white finish and is suitable for use in bathrooms, wet rooms, kitchens, and with washing machines. It offers a permanent jointing solution with easy installation.