Lenova SS-TM-25820-4H Apogee 20-Gauge Stainless Steel Top-Mount Kitchen Sink with 4-Faucet Holes Fine quality sink formed of heavy duty 20 gauge, type 304 nickel bearing stainless steel Inside bowl surfaces polished to a uniform satin finish High density sound absorption pads covered with a thick rubberized insulation layer on all bottom surfaces Minimum cabinet size of 24-inches CUPC certified