Ensure leak-free toilet operation using this Master Plumber rubber tank ball. Manufactured in a triple-seal design, it covers the flush valve to prevent seepage of water from the toilet cistern. Its tough build can tolerate repeated flushes to support use in high-traffic applications, such as shared bathroom facilities. Crafted from a non-porous material, the black, rubber, toilet-tank ball hinders the growth of mould and mildew. Its flexible rubber construction ensures a tight fit on plumbing connections. Equipped with a guide tip, the rubber tank ball offers optimal flushing efficiency. It comes with a corrosion-resistant stem wire that prevents rust for increased longevity. The metal lift wire and rubber cistern ball have a threaded connection for secure attachment. Made using lightweight components, this kit allows fast and easy DIY installation. | Master Plumber Master Plumber Tank Ball – Rubber – Black – Triple-Seal 215A Master Plumber | Tank Ball – Rubber – Black – Triple-Seal .