Domol WC-Reiniger Intensiv powerfully removes limescale, rust, mineral deposits, and stubborn stains, delivering deep hygienic cleaning throughout the toilet bowl. Its thick, active formula clings to surfaces for long-lasting action and helps prevent future build-up. Ideal for both routine and intensive cleaning. Apply the liquid under the rim and along the bowl. Leave to act for 10–30 minutes depending on the level of soiling, then scrub with a toilet brush and flush. Do not mix with other cleaners.