Zep All-in-1 Pressure Wash Cleaner is a powerful, concentrated pressure washer cleaning agent designed to tackle tough outdoor cleaning tasks. Great for outdoor furniture, decks, vehicles, patios, and siding, this versatile cleaner removes dirt, algae stains, mold and mildew stains. Its easy-to-use formula ensures a thorough clean with just a spray and rinse, making it ideal for maintaining the appearance of various outdoor surfaces.