Plug the drain and prevent messy overflow with this bar sink plumbing piece! This must-have pipe takes over much of your responsibility behind the bar, so you can focus on customers instead of filling the sink. Just insert the overflow drain pipe into an empty sink and you’ve got instant damage control, even if you leave the sink running! Once the water level reaches the top of the pipe it begins to drain, to keep your sink full and prevent any overflow. In stock and ready to ship.