Zep 1 gal. Calcium Lime and Rust Remover

Calcium Lime and Rust Stain Remover breaks up deposits quickly removing stains and buildup. This professional-grade concentrated acidic solution removes rust stains limescale hard water stains and calcium deposits. Use on stucco cement porcelain glass fiberglass and brick making it ideal for use on toilets sinks tubs shower heads and glassware. Mix with water and apply to surfaces with a brush sponge or cloth. Then rinse with clean water.