Franke Tap Part Fun Code 133.0251.374 is a quarter turn Tap Valve that opens Anti-Clockwise. See below for more information on product codes and measurements before purchasing.  This product here is for the Hot valve only (picture shows a pair (hot and cold).

Due to the valve being exposed to air at the manufacturing plant (oxidation), you might notice that the brass is slightly blackened in places. These are brand new valves direct from the manufacturer and the ceramic disc and seal are perfect. The slight discolouration has absolutely no bearing on the workings of this valve which have been tried and tested here.