CleanPrince Cistern cleaner Descales and disinfects toilet cisterns, thereby extending the service life of the mechanics, preventing the formation of odors and keeping seals supple thanks to protective additives. This product falls under the regulation of the Biocides Directive 98/8/EC. Use biocides safely. Always read the label and product information before use. BAuA-Rg.No.: N-113519 Danger warnings: H290 can be corrosive against Metal. H315: Causes skin irritation. H318: Causes serious eye damage. H412: Harmful to aquatic life with long lasting effects. H315 Causes skin irritation. Safety instructions: P102: Keep out of reach of children. P280: Wear protective gloves/protective clothing/eye protection/face protection. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for sev.