Roundup Weed and Grass Killer Concentrate, 37 oz, Bottle, Liquid, Amber/Clear, Compositions: Isopropylamine Salt of Glyphosate, Diquat Dibromide, Water and Minor Formulating Ingredients, Flammability Rating: 1, Density: 1.0775 g/cc, Specific Gravity: 1.0734, pH Range: 4.6, Application Method: Pour