Hansgrohe S51 Kitchen Sink Single Bowl Inset With Drainer Grey 1050x510mm. Unused – bought for a project but decided to change the plan. Modern single bowl kitchen sink with drainer. Sink is crafted from SilicaTec composite. Stylish stone grey finish. Minimum worktop depth for installation: 20mm. Please note: waste kit not included. Please Note: A 600mm cabinet width is required. Fantastic FREE 5 year guarantee.