Zep Acidic Toilet Bowl Cleaner is a professional-grade cleaner designed to quickly remove rust, stains, and hard water buildup from toilets and urinals. Its powerful 10% acidic gel formula clings to vertical surfaces for thorough cleaning with minimal scrubbing. The angled neck ensures precise under-the-rim application, and the fresh wintergreen fragrance leaves your bathroom smelling clean. Safe for septic tanks, drain lines, and plumbing systems, it’s the ideal solution for maintaining a spotless toilet bowl.