Continental Commercial NI165-4 Non-Para Urinal Block with Screen, 4 oz Capacity, Strawberry, 6

4 oz enzymatic deodorant block contains surfactants and chelating agents to clean and deodorize for 30 days (up to 2000 flushes) coloring agents are released with each flush so you know that it's working. Increased ventilation reduces potential splash back. Flexible screen traps more debris to prevent costly drain clogs.