This 28 mm nozzle is designed for Weber DCNF carburettors fitted to many classic vehicles. It is an essential replacement part when overhauling or restoring a carburettor, allowing you to restore optimal fuel supply performance. Sold as a single unit, it is aimed at enthusiasts and mechanics keen to preserve original equipment on their classic vehicle. Replacement of this part helps maintain the reliability and performance of the carburettor in keeping with period-correct mechanics.