C.P. Cleans Potties Bio-Enzymatic Bowl Cleaner - 22oz BottleC.P. Is Like No Other Toilet Bowl Cleaner. It’s the first bowl cleaner to combine a specialized strain of bacteria with 100% biodegradable cleaning agents specifically designed to make the bowl shine like never before and keep the entire system odor-free, while maintaining the bioactive environment essential to odor control in your holding tank. C.P. Destroys Odors On Contact As It Cleans. Just squirt a little C.P. under the rim of the toilet bowl. Stains, soil, and odor – even the worst raw water odors from the intake line - just disappear, usually without brushing. C.P. eliminates the need  to use bleach and other toxic chemicals to sanitize your toilet bowl. Use C.P. to clean sinks, showers and basins too! It leaves them sparkling clean and fresh-smelling. C.P. Is The Only Bowl Cleaner That Can Be Combined With  K.O. (Kills Odors)Other toilet bowl cleaners use chemicals. Because C.P. is a bioactive cleaner that uses no chemicals, it won’t kill the bacteria in K.O.(Kills Odors)