This 29 mm nozzle is designed to fit Weber DCNF type carburettors, fitted to many classic vehicles. Sold individually, it allows you to replace a faulty, blocked or out-of-specification nozzle without having to change the entire carburettor. As part of a restoration or careful maintenance programme, replacing this component helps restore correct air-fuel mixture and engine operation true to the original. A reliable choice for enthusiasts keen to keep their period equipment in working order.