Heavy Duty Porcelain, Toilet & Chrome Cleaner
This is a concentrated acid ready to use bathroom cleaner that will remove soap scum, scale, mildew, rust, corrosion, discoloration and hard water deposits. It contains phosphoric acid.
DIRECTIONS:  
Dilute product with 5 parts water. Spray a light mist onto the surface to be cleaned, wipe with a clean towel and rinse with water. For heavily soiled surfaces, repeat the process.