What you see in my pics are the genuine parts you will purchase inc NAC Harness with all seals in place not generic pics of what you may get , a lot of valves advertised cheaper on here as new are clearly not new .. p>*** These are all brand new in their Worcester boxes and purchased the last stock direct from a major Worcester Distributor**** This part fits the following 6 appliances (sorted alphabetically): Worcester HIFLO400 ELECTRONIC BSN NG COM Worcester HIFLO400 ELECTRONIC FSP NG COM Worcester HIFLO400 ELECTRONIC OSN NG COM Worcester HIGHFLOW 400 FSN COMBI NG Worcester HIGHFLOW 400 OSN V1 COMBI NG Worcester HIGHFLOW HIFLO400 BF COMBI NG