Hertel Plus is an ultra-strong cleaner, ideal for big jobs. In addition to disinfecting surfaces, it dissolves grease and eliminates tough stains. it will effectively kill germs that may cause poisoning, cold and flu. Use it to get rid of the worst grease and baked-on, dried-in food stains like on barbecues or stubborn stains such as wax, ink soot and rust. This product is biodegradable and phosphate-free, Hertel Plus can be used right out of the bottle or diluted to clean large surfaces. 4 L bottle.