DeerValley Ceramic Rectangular Vessel Sink for Bathroom ,Hotel,Balck,DV-1V0010

An overflow is a small hole in the back of the sink that prevents the sink from overflowing. When the sink is full of water, this hole allows air to circulate to the drain so the water can drain more quickly. Stain Resistant, Rust Resistant, Scratch Resistant, Chip Resistant A shut-off valve is connected to the water lines and allows you to turn off the water for just one plumbing fixture instead of your entire home. A p-trap holds water to prevent sewer gases from entering the home through the drain. It also traps debris that has drained from the sink to prevent the plumbing system from being clogged.