Features: Premium All Copper Manual Press Delay Flush valves ensures strong corrosion resistance and water saving timed flushing for efficient bathroom fixtures. Unique delay mechanism maintains steady water flows post initiation, while ergonomic press design simplifies operation across various toilet arrangement. Suitable for residential bathrooms, commercial restrooms, and public facilities requiring accessible, maintenance friendly sanitary equipment. Optimizes water efficiency in high usage environment like apartment complexes, restaurants, and office buildings with strong brass construction. guide without brass cores withstands extreme humidity and frequent use, delivering leak proof performances for floor mounted or wall mounted toilet systems. Specifications: Component: +brass Height: about 6.9cm/2.72inch 8cm/3.15inch 9.2cm/3.62inch Type: 3/4inch or 1in Package Includes: 1xFlush valves note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.