Air Uno has teamed up with Foster, the Italian makers of superior stainless steel, to offer a stylish range of sinks and taps including this streamlined 985mm x 503mm flush-mounted bowl and drainer Quadra sink with its sharp-edged corners. The difference between this sink and others is that Foster uses only the very highest grade AISI 304 stainless steel whilst most domestic sinks in the UK are AISI 430 steel.