When the task requires more aggressive restroom cleaning performance, NABC Plus IV natural acid bowl and porcelain cleaner is the environmentally sound answer. 4% natural organic citric acid and biodegradable surfactants are the mainstays of the NABC Plus IV formula. NABC Plus IV is the natural solution to tougher restroom cleaning tasks.Ready to use natural acid bathroom cleanerPopular NABC fragrance leave restrooms smelling clean and freshRemoves rust, soap scum and water spotsConvenient quart packaging includes 1 bowl mop in each case