a cleaning solution specifically formulated to break down and remove tough mineral deposits, stains, and hard water buildup that form over time on surfaces like tiles, faucets, showerheads, and bathroom fixtures.
These cleaning solutions are typically used to tackle kerak (scum or scale), which can build up from minerals like calcium and magnesium found in hard water. The product is commonly used in bathrooms, kitchens, and other areas where water is frequently used.