Danco Tank To Bowl Spud Gasket For Gerber is designed to fix leaking toilets by providing a secure seal between the toilet tank and bowl. This spud gasket fits inside the toilet base where the tank drains into the bowl, effectively retaining water in the tank and preventing leaks. By replacing a worn-out gasket with this durable and reliable Danco solution, you can upgrade your toilet's performance and eliminate potential water wastage, ensuring a more efficient and leak- bathroom fixture. Model Number: 80864