Hi,
Racor filters are just that filters!! you still have to change the filters and introduce biocide to every litre. Our Fuel Purifiers do not have any filters they will keep cleaning the fuel from bug continuously for the life of the engine with no additional cost once fitted. As you will be aware Diesel bug is always in the fuel it is just dormant until it gets the right conditions to replicate. If you invest a little today you will have years of trouble free sailing and now the EU directive is making Marine supply ultra low Sulphur Diesel this is going to make the problem much worse. Best Regards. Alistair.