STERLING B153B-2 Secondary Sink 15-inch by 15-inch Top-mount Single Bowl Bar Sink, Stainless Steel 5-1/2" Basin depth 3-5/8" Drain opening Two-hole faucet punching Made from 22 gauge stainless steel with a buffed basin finish and durable satin finish SilentShield, an exclusive sound-deadening system, reduces unwanted noise and vibration