It is essential that a toilet fluid should kill harmful bacteria and germs to prevent them from multiplying.
Its powerful anti-bacterial formula kills them on contact whilst eliminating unpleasant odours.
Double Blue is the only fluids you can buy that exceed British Standards. That’s why Elsan toilet fluids are chosen by caravanners, and boating and camping enthusiasts alike.
Double Blue is double concentrated so whilst it gives exactly the same unbeatable anti-bacterial performance as Elsan Blue, it provides twice the doses making it especially good value.
And because it is concentrated, it also takes up less valuable storage space.
Elsan Double Blue is also pleasantly fragranced, non-staining and suitable for all chemical toilets and cassettes.