Dayton D117213 Single Bowl Top Mount Stainless Steel Bar Sink ADA COMPLIANT: Product is ADA compliant when properly installed. DROP-IN INSTALLATION: Sink is designed for drop-in installation to make the sink a focal point of your room. 300 SERIES STAINLESS STEEL: Designed for everyday use. QUIET: Sound-deadening pad(s) minimizes sound and vibration for a quieter time at the sink. U-CHANNEL INSTALLATION: Mounting clips placed inside the channel before installation mean less time under the sink for an easier install. MADE IN THE USA: This Elkay product is proudly made in the USA. DRAIN OPENING: Sink drain opening measures 3-1/2".