Whink Rust Stain Remover, 32 oz. is designed to quickly and easily eliminate rust stains from a wide range of surfaces. Whether you need to clean white sinks, white toilet bowls, colorfast fabrics, carpets, pipes, or septic systems, this powerful formula gets the job done effectively. Containing hydrofluoric acid, it comes conveniently packaged in a 32 oz. pour bottle, making it easy to use for all your rust removal needs. Model Number: