Citrisil tablets are a simple solution to treating dental unit waterlines! This product is the only all-in-one solution that includes a shock treatment to ensure complete compliance is achieved. Citrisil tablets continuously clean waterlines and are safe for patients and staff. Cleans and maintains dental unit waterlines to ≤ 10 CFU/ml. Includes Shock tablets to kill pre-existing odor-causing bacteria. Eliminates the need to empty bottles and purge lines at the end of each day. Blue tablets provide a blue tint, giving the user visual confirmation a tablet has been dropped.