McAlpine Rectangular Waste Overflow Elbow for Sinks - 39000015
Waste with Rectangle Overflow for RAK Rangemaster CDA Sinks : Amazon.co.uk: DIY & Tools
Kitchen Sink. Black Stainless Steel, Double Bowl, Rectangular, Top Mount, Nano Brushed with Overflow and Drainage Fittings, 72 cm/75 cm : Amazon.co.uk: DIY & Tools