Dudley Turbo Edge Quantum Pushbutton Syphon Thomas Dudley's most advanced syphon yet, ideal as a leak free, push-button replacement for valve-operated systems. Compatible with all Dudley two-piece syphons Upgrade your toilet system with this reliable, leak-free valve replacement, designed to deliver long-lasting performance and improved water efficiency. Featuring a smooth, light-touch operation, it offers effortless day-to-day use alongside a water-saving dual flush function, simply press and hold for a full flush or press and release for a reduced flush. For even greater efficiency, it can be paired with the Dudley Hydroflo® inlet valve, which uses delay-fill technology to ensure the cistern only refills once flushing is complete, helping to minimise unnecessary water use. The valve includes adjustable flush volumes of 6, 7, or 9 litres, allowing you to achieve optimum performance based on your needs, and is ideal for replacing existing flush valves in close-coupled toilets. Its height can be adjusted from 191mm to 241mm (7½” to 9½”) for flexible installation across a range of cistern sizes. Supplied with both a low-profile chrome flush button and a palm push button, you can choose the finish and style that best suits your bathroom. Installation is quick and straightforward thanks to the included 51mm (2”) outlet adaptor and a fully captive yellow fixing pin that remains in place, removing the need for extra handling during fitting. Suitable for cisterns with an internal height between 350mm and 425mm and water levels from 170mm to 220mm, this valve offers a practical and dependable solution. For added peace of mind, it is backed by a 10-year warranty, making it a smart, long-term upgrade for any bathroom.