Fuganet - Grout Cleaner For Tiles - 2 Pack You are buying 2 containers. each container holds 500 ml (16.91 ounces). Application: Spray the product directly onto the joints to be cleaned. Leave for a few seconds then scrub with an abrasive sponge or scrubbing brush. Rinse well. This product does not need to be diluted. Precautions: Contains anionic surfactants with a biodegradability over 90%.Keep out of reach of children. For all tile applications, first test this product on a small portion to ensure there are no color changes.