Product Description
A replacement gas valve for Worcester Bosch Si/C1 Series appliances.

The gas valve is employed in the distribution of gas. When gas is
required in the burner the printed circuit board (PCB) sends a signal to the gas valve,

which opens to allow gas to flow into the burner
or the pilot assembly

This Part Fits:
Worcester 24SI II NG FSN Combi
Worcester 28SI II NG FSN Combi
Worcester RD628 FSN NG British Gas Combi