Removes and prevents stains caused by mold, mildew, moss, algae & lichen. Asphalt shingles. Wood shingles. Slate shingles. Clay/tile. Keeps cleaning long after application. Its that easy! Eco friendly. Saves time, no rinsing needed! Sprays up to 20 feet coverage 600 sq. ft. Non-refillable. 100% Satisfaction guaranteed. www.sprayandforget.com. For product concerns or questions, please call 1-877-227-3462 or visit cardinalhealth.com/products. Proudly made in the U.S.A.