This RV exterior cleaner from 4U removes oil spots, black streaks, and road grime. Use the rv exterior cleaner to clean windows, counters, rubber roofs, awnings, carpets and more. Keep your RV sparkling clean from top to bottom. Its super concentrated formula allows you to only need one bottle to make 32 regular strength 16 oz. bottles. Simply add your own water and you are set. The Combi-Pack includes 1 empty 16 oz. trigger spray bottle and a 16 oz. bottle of concentrate. We also carry a refill bottle. Priced each.