Dual-Flush Valve with Push Button: This toilet cistern valve features a dual-flush design, allowing a full flush or a half flush. It is compatible with cistern outlets of 12.7 cm and 5.1 cm. adjustable overflow tube: The overflow tube is adjustable from 5 cm to 33 cm, ensuring compatibility with different cistern sizes and enabling precise water level control. Oval chrome dual-flush button: The flush button is chrome, oval-shaped, and 5 cm wide. It is designed to install through a 1.5 cm threaded hole in the cistern, adding a stylish touch to your WC. Durable ABS construction: Made from ABS, this flush valve is robust and durable, delivering long-lasting performance and reliable flushing for a hassle-free experience. Use scenarios: - Ideal for bathroom renovations or retrofits where cistern outlets are 12.7 cm or 5.1 cm, ensuring proper fit. - Replaces worn or leaking valves to restore consistent dual-flush operation and adjustable water level. - Suitable for new installations requiring adjustable overflow length to fit various cistern depths and achieve optimal water pressure.