Fix leaky toilet cisterns and overflowing storage tanks quickly and cost-effectively. The 4Trade Part 1 Ball Valve Washer is a reliable, trade-quality replacement component designed to restore a perfect watertight seal in traditional ball valve mechanisms. Supplied in a convenient pack of 10, it is an essential consumable for any plumber's van, maintenance kit, or dedicated DIYer. Precision-manufactured to seat flawlessly within standard Part 1 ball valves, these washers instantly stop annoying drips, continuous running water, and potential tank overflows, helping to conserve water and prevent property damage. Crafted from high-quality, plumbing-grade rubber, these washers are engineered to withstand constant submersion, hard water scaling, and fluctuating mains water pressures without perishing, splitting, or degrading prematurely. Supplied in a highly economical pack of 10, this set ensures that heating engineers, caretakers, and plumbers always have the necessary replacement parts on hand for rapid call-out repairs, minimizing downtime and supply runs. Designed for a straightforward swap, these washers allow you to quickly service and extend the lifespan of existing brass or plastic ball valves. This saves you the time, hassle, and expense of replacing the entire valve assembly.