Simple Green Crystal Industrial Cleaner/Degreaser - For Metal - 640 fl oz (20 quart) - 1 Each - Non-flammable, Non-toxic, Scent-free, Fragrance-free, Color-free - Clear Nontoxic cleaner/degreaser features an industrial-strength formula without any added color or scents to safely clean and degrease surfaces. Versatile solution is powerful enough for intense grime while gentle enough for continued maintenance of high-traffic areas. Clean-rinsing design is excellent for surface-preparation before painting, plating or welding. Nonflammable cleaner/degreaser is perfect for use on metals, plastic, rubber, glass and more.