Franke Basis Reversible Fragranite Kitchen Sink & Drainer Single Bowl Stone Grey. Scratch resistant, stain resistant, temperature resistant to 280°C. Sanitized® – embedded with silver phosphate glass to prevent 99% of bacteria from multiplying. Reversible design – this sink has a pre-scored tap hole at the front and the back located on the underside of the sink. Choose which side you prefer to install the drainer, then knock out the tap hole with either a 35mm drill bit or a hammer and punch. Complete with 90mm basket strainer waste. Cut out required: 950 x 480mm and minimum 600mm cabinet. Bowl size: 450 x 420 x 200mm (LWD).