The Elkay DRKADQ3119450 Single Bowl Top Mount Classroom Sink with Quick Clip. This high-quality stainless steel sink is rectangular-shaped and is designed for a top mount installation. An additional feature of this Elkay DRKADQ3119450 sink is the slotted hole that allows for the installation of a vandal-resistant faucet and a bubbler. The overall dimensions of the sink are 31" x 19-1/2" x 4-1/2". The sink is not furnished with faucet holes. It has a 3-1/2" drain hole located centered left-to-right and off-centered front-to-back towards the rear of the bowl (refer to the specification sheet). The sink has a lustrous highlighted satin finish and it is constructed out of #18 (1.2mm) gauge, type 304 (18-8) nickel-bearing stainless steel. It is reliable for heavy-duty work and long lasting performance. The underside of the sink has a special coating to reduce condensation and dampen sound. The Elkay DRKADQ3119450 Single Bowl Top Mount Classroom Sink complies with ASME A112.19.3/ CSA B45.4 and is listed by IAPMO as meeting the applicable requirements of the Uniform Plumbing Code, International Plumbing Code, and National Plumbing Code of Canada. It has a limited lifetime warranty from the date of purchase. All Elkay products are made in the USA.