This formula cleans and removes soap scum plus heavy calcium, lime, and rust deposits from toilets, shower doors, stalls and bathtubs, leaving them clean and residue-free in just minutes. Helps to remove stains around fixtures and drains, assisting in the prevention of future buildup with regular use. This product is designed for cleaning toilet bowls, urinals, sinks, bathtubs, shower stalls, chrome and stainless steel fixtures and drains. It removes rust, scale, soap scum and filth.