Delimer Contains phosphoric acid to dissolve scum and hard water stains. Also cleans and deodorizes urinals, shower stalls and bathroom surfaces. Will remove most mildew stains. Order Online Request Information Try One of STF's Cleaning Products Chlorine Tablets | Graffix | Quickfix | Urinal/Industrial Cleaner & Degreaser Truck Wash | Toilet Washdown | All Purpose Cleaner | Delimer Pathfinder Solution | Accessories | Exhaust Vaporizer Scent | Pump Oil Additive