Lime Out 24 oz. Lime, Rust & Calcium Stain Remover. Its extra thick, heavy-duty formula clings to vertical surfaces, ensuring maximum cleaning power. This product effectively dissolves lime, rust, calcium, and mineral deposits, leaving toilets, sinks, tubs, and showers fresh and clean without the need for scrubbing. Use on porcelain, ceramic, fiberglass, and stainless steel surfaces, it is not recommended for natural stone, marble, granite, or other acid-sensitive materials. LIME OUT is septic-safe and can be used both indoors and outdoors, making it a versatile cleaning option.