Stainless Steel 18-Gauge Undermount Utility Sink. 304 SS with Satin Finish. Overall Measurements: 19-3/4" x 20-1/2" x 9". Bowl Measurements: 17-3/4" x 18-1/2" x 9". Drain Opening: 3-1/2". Insulated Bottom. Template & Mounting Clips Included. Strainer Sold Separately, part # STRAINER-200. *does not comply with UPC Certification Please note that this item must be shipped via common carrier.