Specially formulated urinal and channel blocks (PDCB Free). Suitable for use in all types of urinals, especially where safer cleaning materials are required, such as institutions, schools and public buildings. Each cube weighs 20g. Non-PDCB channel blocks have a high perfume content and neutralise odours from urine, tobacco and sweat. Blocks are water soluble, so won’t block outlets. Comes complete with storage bucket.