InSinkErator SilverSaver Sink Stopper in Polished Stainless Steel # STP-DS. The InSinkErator® stopper is designed to stop water and food particles from going down the drain. Available in a wide range of popular designer colors including polished stainless steel, polished brass, white and biscuit. For use with InSinkErator Pro Evolution manufactured disposers. Note: Use of abrasive cleaning solutions may harm this product's finish.