The Sterisil Straw is the solution to transitioning from daily tablets to a single yearly change out The Sterisil Straw works 365 days to continuously disinfect dental unit water lines while providing safe and clean water for your patients staff and dental unit A built-in shock treatment is released upon initial install for optimum control of bacteria The antimicrobial bottle is available to help further suppress the growth of bacteria algae fungus mold and mildewSimply remove your existing pickup tube and install the new pickup tube with the Sterisil Straw on the barb fitting Distilled to good quality water is recommended for optimum product performance and dental composite bonding