CLR PRO® Calcium Lime and Rust Remover Fast and effective way to clean away calcium, lime and rust deposits. Industrial strength, multi-purpose cleaner designed for kitchen or bathroom related surfaces. Quickly removes calcium, lime & hard water deposits, soap scum, discoloration & dirt. Versatile cleaner for use on plastic, ceramic tile, glass, stainless steel, faucet and shower fixtures, shower doors, fiberglass, toilet bowls & sinks. Part of the EPA’s Safer Choice Program recognizing the product as a safer alternative to harsh chemicals without sacrificing the quality or product performance. Contains no phosphates, ammonia or bleach. Manufactured in the USA. NSF Registered Category A3