Bio D toilet cleaner is concentrated, easy to use and as environmentally sound as you would expect it to be. Part of the Bio D range, this natural toilet cleaner is designed to have a minimal impact on the environment in both its manufacture and its use, without compromising on cleaning quality. Bio D toilet cleaner is as tough as you need it to be on soiling and limescale, naturally cleaning porcelain and enamel surfaces to a shine without the use of harsh chemicals. It won't affect the safe working of cess pits and septic tanks, and is fully biodegradable. 750ml bottle with directional "duck" nozzle.