Thompson's Water Seal TH.087731-42 WaterSeal Oxy Foaming Action Exterior Multi-Surface Cleaner, 2 lb;

Use on wood and composite decks, fences, concrete and masonry, furniture, roofs, and siding. Removes dirt, mildew, algae and fungus stains. Uses an oxygenated foaming action. Non-Bleach. Chlorine-Free Concentrate. Biodegradable formula.