Moldex, 56 OZ, Instant House Wash, Removes Tough Stains From, Mildew, Mold, Algae, Fungus And Moss And Restores The Original Look To Wood, Vinyl, Brick And Stone Siding, Formulated With A New Advanced Bleach Gel Formula, Removes Unwanted Stains Deep Below The Surface, Active Cling Technology Allows Powerful Cleaning Agents To Remain Or Hold Onto The Vertical Surface Longer To Achieve The Highest Effective Contact Time, No Phosphates, Reaches 2nd Story, Covers Up To 4,000 SQFT.