Fenwicks are a British company who have been producing some of the best cleaning products available today. Their products are made in the UK to the very highest of standards and surpass their rivals in performance and ease of use. Superior performance and proud to be made in the UK. Fenwicks caravan cleaner concentrate will easily remove black streaks green algae road traffic film diesel fumes and over wintering grime etc. It is suitable for cleaning plastics aluminum acrylic windows GRP ABS fiberglass decals sealants and much more. Highly concentrated formula guaranteed results.