Product DescriptionIron OUT, the #1 heavy-duty rust stain remover powder, is specifically formulated to easily rinse away the toughest rust stains, eliminating the need for scrubbing. The multi-purpose and versatile powder is perfect for use in removing and preventing difficult rust stains in bathrooms, kitchens, appliances, laundry, water softener maintenance and many more applications in and around the home. Iron OUT is best on rust. A family owned business that started in 1958, Summit Brands offers highly effective, sustainable, and innovative household cleaning products. Summit Brands began with the distribution of multi-purpose rust stain remover, Iron Out, and has since branched out to include a broader line of specialty cleaning products under the OUT, Glisten and Plink brands. As category leaders in many consumer segments, our goal is to provide high-quality cleaning products that fit the needs of the consumer with guaranteed results.From the ManufacturerSince 1958 Super Iron Out has been the number one brand because it works better on rust stains than any other product. Super Iron Out chemically changes rust and iron into a clear, soluble state that easily rinses away without scrubbing. It does not contain harsh or abrasive chemicals and is safe on a number of different surfaces including toilet bowls, toilet tanks, white clothing, sinks, tubs, tile and showers, appliances -washers and dishwashers, water softeners, concrete and exterior walls.