Lilly Miller Moss Out For Roofs And Structures 6lb Lilly Miller Moss Out For Roofs Dry 46lb Micro-granule formula Non-staining zinc can be applied directly or mixed with water as a spray Active Ingredients: Zinc Sulfate 6 lbs. covers up to 6,000 sq. ft Micro-Granule Formula, Kills Moss Quickly On Roofs, Patios, Sidewalks, Brick, and Unpainted Cement Use Dry or Wet, Non-staining, Non-corrosive to galvanized gutters Contains 99% Zinc Sulfate Monohydrate