CPS278 / CPS578 Finish: Antique Pictured in Antique Copper Features: -16 Gauge Hammered Copper.-IAPMO listed / cUPC certified.-Undermount or Drop-in installation. Options: -Available in Antique Copper or Brushed Nickel finishes. Dimensions: -3.5'' Drain.-Outside dimensions: 21.5'' H x 16'' W x 9'' D.-Inside dimensions: 18'' H x 12.5'' W x 8.5'' D. Warranty: -Limited lifetime warranty.