Weiman Grout Cleaner features Stay Clean technology specially designed for ceramic and porcelain tile. This extra-strength, labor-saving formula begins cleaning grout on contact, effectively removing dirt and stains. It leaves behind an invisible protective shield that helps keep surfaces resistant to stains and soil buildup. The cleaner comes in a convenient 30 oz trigger spray bottle, making it easy to apply and use for maintaining clean and fresh grout lines. Model Number: 3052