Sink series franke kubus sink width 558 cm sink depth 46 cm bowl sizes 34 x 40 x 21 16 x 40 x 13 cm material granite manufacturers material description fragranite durakleen colours beige white manufacturers colour beige glacier crema surface matt fitting width 60cm minimum base unit design 15 bowl sink layout right installation undermount sink number of bowls 15 properties scratch proof crack resistant colourfast food safe acid resistant