Krud Kutter 305108 Krud Kutter® Calcium, Lime and Rust Stain Remover Calcium, Lime and Rust Stain Remover, 828 ml, Jug – Bottle

Efficiently dissolves and removes tough calcium and lime deposits as well as rust stains from the surface of showers, sinks, glass, tubs, toilets, coffee machines, and kettles
Great to use outdoors on concrete driveways, wooden decks, stone, masonry, siding, brick, and stucco
Will not harm lawn or plants when used as directed
Do not apply to paint, stains or brick that contain iron oxide pigments
Safe for septic systems
Biodegradable