The 420 stainless steel under mount or top mount vanity sink is made from 304 grade stainless steel and is available in 18 Gauge thickness. The surface has a brushed satin finish to help mask small scratches that occur over time and keep your sink looking beautiful for years. The overall dimensions of the 420 are 16-1/4 in. x 16-1/4 in. x 7 in. and an 18 in. minimum cabinet size is required. This sink requires a pop-up drain. As always, our stainless steel sinks are covered under a limited lifetime warranty for as long as you own the sink.