ADA COMPLIANT: Product is ADA compliant when properly installed 22-GAUGE STAINLESS STEEL: Commercial grade 22-gauge thickness and 300 Series stainless steel for everyday use DROP-IN INSTALLATION: Sink is installed above the countertop, an ideal choice if you are not replacing the counter; has a beautifully finished rim 300 SERIES STAINLESS STEEL: Sturdy design is crafted to meet the demands of 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 means less time under the sink for an easier install; DRAIN OPENING: Sink drain opening measures 3-1/2 in.; N/A