Package includes: 1 urinal flush valve, easy to install. Easy to use: manual pressure type, detachable and easy to clean, easy to use, flexible, greatly save water and are environmentally friendly environment friendly. HIGH QUALITY AND DURABILITY: Solid zinc alloy construction, chrome finish, rust resistant, will always look new, suitable for washbasins and sinks. Sleek and sophisticated design that perfectly complements your bathroom. Manual Delay: Manual delay to close valve for 4-8 seconds. FLUSH VALVE: If you want to replace, you need to measure the thread size of the water inlet and the height between the center of the water inlet and the bottom of the water outlet. Newly installed household water pipes and water pipes should not be laid, otherwise the water pipe has been repaired and cannot be installed appropriately.