Replacement sink gasket designed specifically for use on the following In-Sink-Erator models: Badger 1®, Badger® 5, Badger® 5 Plus, 444®, Pro 333®*, and Septic Disposer®. The “Twist-On, Twist-Off” Quick-Lock® Sink Mount, standard on all In-Sink-Erator models, allows you to easily replace a worn mounting gasket in three simple steps. After disconnecting the disposer from the plumbing, simply twist off the mounting ring, lower the disposer, and replace the worn gasket. Then lift the disposer back into position, and twist the mounting ring back into the lock position.