The Molded Tank-to-Bowl Gasket for Kohler toilets is designed for a perfect fit, measuring 4-3/16" OD, 3-3/4" top ID, and 3/4" thick. This high-quality gasket ensures a watertight seal between the tank and bowl, preventing leaks and maintaining optimal performance. Made from durable materials, it is built to withstand the rigors of daily use. This gasket is compatible with various Kohler toilet models, making it an essential component for repairs and replacements. Easy to install, it provides a reliable solution for maintaining your toilet's functionality.