Universal fit This toilet flush button is compatible with most standard toilets. Outer diameter 47 mm, thread width 38 mm, and it fits toilet tanks with a diameter of 37 mm to 44 mm. Watersaving dual flush mechanism Integrated dual flush allows precise control of water use. Choose a small flush for liquids and a large flush for solids to reduce overall water consumption and protect the environment. Easy installation without tools Tool installation means you can quickly a worn or damaged button. No tools required, making it a practical replacement part for refreshing your toilet. Ergonomic design for comfort Designed for daily use with a smooth mechanism for effortless operation. The button is easy to press for users of all ages. Use scenarios Home bathroom upgrade: an old or inefficient flush button to improve usability and water savings. Rental properties or office restrooms: a quick, tool refresh that minimizes downtime and maintenance. Renovation or maintenance projects: flexible 112 mm stud allows adaptable installation across a range of tank configurations. Specifications (summary) Outer diameter: 47 mm Thread width: 38 mm Fits tank diameter: 37–44 mm Includes: 112 mm long stud