16 gauge 304 surgical stainless steel, Soci's finest sinks Soci's Fino collection of stainless steel sinks are made of high quality 304 stainless steel. Like all fine sinks, they feature sound deadening pads and undercoating. All Items All Sinks in the Fino Collection are 16 Gauge Stainless Steel H1202DE 50/50 undermount sink $ 649.00 H1302L 16 Gauge 60/40 Stainless Steel Sink $ 649.00 H1304LA 60/40 Sink $ 729.00 H1306 60/40 Stainless Steel Sink $ 649.00 H1322LA 16 Gauge 60/40 Sink with Apron $ 729.00 H1500S Single Bowl Undermount Sink $ 609.00 H1502SA Single Bowl Sink With Apron $ 709.00