Whink® Lime & Rust Remover. Dissolves hard water problems and removes rust stains fast. Great for eliminating buildup caused by soap scum and calcium. Dissolves hard water problems and removes rust stains fast! Whink® lime & rust remover quickly dissolves rust & hard water stains, soap scum and buildup on bathroom sinks, tile, shower doors, tubs and toilets. Also leaves fiberglass, stainless steel and chrome sparkling clean. Nonabrasive, professional strength formula is specially designed for hard water areas. Dissolves away unsightly buildup without scrubbing. Can also be used full strength to clean lime scale buildup in humidifiers, vaporizers, tea kettles and cookware. For toilets, stop rust with every flush, with Whink® Rust Guard®. Safe for septic systems. Comments, questions: Call weekdays 9-4 CST toll free 1-800-247-5102. www.whink.com. ©2015 Whink Products Company.