Highly active， phosphoric acid cleaner removes scale and buildup from urinals and floors. Also use it to clean sinks and toilets. This active rust remover is an outstanding hard water spot remover and descaler. It removes tough stains such as lime and alkaline deposits from stainless steel kitchen fixtures， equipment and dishwashers. Descaler comes in a plastic bottle with an easy-to-grip neck and a screw top. For light cleaning applications， this product can be diluted with water.