The Elkay LR3122PD4 is from the Lustertone collection and is constructed out of Industial strength 304 Stainless Steel. This 18 Gauge nickel bearing sink incorporates strength and functionality to insure a lifetime of daily use. The Elkay LR3122PD4 is designed as a Drop-In/Top mounted sink and comes pre-drilled with 4 faucet holes and features the U-Channel Type mounting system for quick and convenient installation. This Single bowl Gourmet sink features a smooth Lustrous Highlighted Satin finish which is easy to clean and helps to provide a warm, inviting feel to your Kitchen. This high quality 31 x 22 inch Rectangle sink measures 31 inches left to right and 22 inches front to back. The 3-3/8 inches drain is located at the center of the sink basin. The depth of the Elkay LR3122PD4 Gourmet Kitchen sink is 7.625 inches deep, and like all other high quality sinks proudly made by Elkay comes with a Lifetime Warranty against any manufacturer defects.