Flush Button Compatibility with 49 Valves: This dual flush button, specially designed for 49 valves, ensures seamless functionality with your existing system, delivering efficient water usage and reliable performance. Toilet Push Button: With a 48mm diameter that fits standard cistern holes (38-42mm), this toilet push button is easy to install. Simply screw it into the flush valve for quick replacement. Toilet Tank ABS Material: Made from high-quality ABS material, this button offers durability and longevity, maintaining its sleek silver appearance while withstanding daily use. Dual Flush Operation: Featuring dual flush capability, this button is perfect for close-coupled cisterns, allowing you to choose between a full or half flush to conserve water effectively.