Star Brite Instant Black Streak Remover | 64 oz. Spray Bottle

Those black streaks running down from roof vents and window edges are just dirt and oxidation carried by rainwater, and they're a pain to scrub off with regular soap. This spray targets that specific kind of stain so you can knock it out fast instead of attacking it with a brush.

• Breaks down black streaks left by water runoff on contact
• Formulated for fiberglass, metal, and painted surfaces
• Spray on and wipe off — no hard scrubbing required
• 64 oz. bottle covers a lot of exterior surface
• Handy around the house too, not just on the RV

Note that it's a streak remover, not a wax — it won't strip or add any wax or polish, so it plays fine with whatever protectant you're already using.