Cleans & removes tough stains & mildew stains. Outdoor patio/deck. Driveway/garage. House siding. Works in pump sprayers! (Bleach compatible). Contains no phosphorus. www.clorox.com Questions or comments? Visit us at www.clorox.com or call us at 1-800-227-1860. For more product ingredient information, visit www.IngredientsInside.com. Environmental Commitment: The surfactants in this product are biodegradable. The bleach in this product rapidly breaks down almost entirely to salt water. Made in the USA.