Porcelain cleaning solution is designed for daily use. This EPA-registered disinfectant bathroom cleaner can be used for bowls, urinals and other hard surfaces including ceramic tile, plastic, stainless steel, fiberglass and marble. Proven "one step" disinfectant-cleaner-sanitizer-fungicide-mildewstat-virucide. Dispenses 61 RTU gallons per bottle. 2 liter bottle. This product is a mandatory purchase item for the United States Postal Service.