Are you overwhelmed by the prospect of cleaning y our gutters after bad weather? Krud Kutter's Gutter cleaner makes this project safe, easy, and effective. Gutter Cleaner removes black streaks, dirt, stains from mildew, acid rain, algae, oxidation, moss, fungus, mold, tree sap, bird droppings, grease, grime, oil & more. Recommended for exterior metal, vinyl, plastic, and aluminum surfaces, including gutters, window or door frames, siding and lanai frames. Ideal for mobile homes, RV's and campers.