Elkay offers a wide variety of popular sink models, accessories and "sink" with faucet combinations to fit any need and any budget consideration. Each is based on one of Elkay's three high quality grades: Lustertone, Pacemaker and Celebrity. Elkay quality grades are determined by the gauge of stainless steel, by the compartment depth and by the type of finish applied to the sinks. Remember, the smaller the gauge number, the thicker the stainless steel.