If you have lost the tub stopper that came with the unit or there was not one available when you moved in, replace it with the OXO Good Grips Silicone Tub Stopper. It will also work in kitchen sinks and utility tubs. If you need to bathe the children, yourself or animals, it is ideal to have an easy to use tub stopper. This option lifts up quickly to drain the water if the animal or child gets a little antsy. This option can also stick to the side of the tub or sink when it is not in use. This helps to prevent it from being lost again. Consider having one of these on-hand for all sinks and tubs in the home including bathroom sinks.