Double Sink AD40 The AD40 is one of the GEC Anderson® Series A range of double stainless steel sinks. Series A sinks are of the highest quality and finish and are available in single, double and combination sizes. • Internal bowl size: 340x400x200mm with 12mm corner radius • 20 mm flat flange (Overall size: 745x440mm) • Fixing options: Undermount / Inset / Flushmount • EN 1.4301 brushed satin stainless steel • Ø89mm basket strainer waste (BSW) and overflow • Sound deadended and plastic protected