Hi you are looking at a Riello RDB1 26 BF, Neutral Burner Part No: 3513008, 501 T1K- from

Camray 5 Combi boiler.

This was installed in our external boiler, it was running poorly in winter and cutting out, time was against us so we opted to replace the whole burner unit for family sanity!

It needs love or good for spares I guess.

Thanks for looking.