The managing director of a real estate company specialising in green properties has recommended to New York Times readers that they consider installing water filters under their sinks. Thats something that people, both environmentally conscious and not, are interested in, said Jeffrey Schleider, managing director of Miron Properties in New York. He added that under-sink filtration units could improve water quality. It stops the use of bottled water, but its also a convenience to have clean water at your tap, he said. Even a very good system can be added for a few hundred dollars, and that adds value. In UK several tap manufacturers make filter taps - Franke, Perrin and Rowe, Abode and Astracast are the most popular.