Strainer waste width: 80mm; Waste opening width: 90mm; Complete waste width: 115mmBolt length of 55mm accommodates sinks up to 32mm thickOutlet size: 1 1/2 inch British Standard PipingExtended bolt designed for thicker sinks such as granite, ceramic, Butler, and Belfast stylesPipe length extends from 200mm to over 400mm for versatile installationSuitable for stainless steel, granite, ceramic, and synthetic kitchen sinks requiring overflow functionality