IronOut No Scent Toilet Bowl Cleaner 2.1 oz Powder

Iron Out, the #1 brand rust stain remover, offers Iron Out Automatic Toilet Bowl Cleaner, specifically designed to repel rust and hard water stains with every flush of your toilet. The concentrated, long-lasting formula cleans rust away and repels new stains from forming for up to 45 days per tablet. This powerful yet safe formula will not harm toilets, internal toilet components, plumbing or septic systems.