The Double Bowl Drop-In Stainless Steel Kitchen Sink features high quality construction and extensive selection come together in 2000 Series. Strong 20-gauge stainless steel serves as a solid base for a wide array of design options. Exceptional sound deadening and wear-resistant uniform brushed finish - backed by a limited lifetime warranty - assure the functionality and beauty last. Stainless steel construction Drop-In installation Drain Size: 3 5/8" U-channel mounting system QuickMount installation included Constructed from 20 gauge stainless steel Center location increases available space under the sink Features SoundSHIELD assuring exceptional noise reduction and quiet dependability Codes/Standards ASME A112.19.3 CSA B45.4 Key Features & Innovations SoundSHIELD All stainlees steel sinks feature SoundSHIELD, a sound-deadening system that offers exceptional noise reduction and quiet dependability. Buy American Act Products identified with this icon comply with the Buy American Act.