Easy, 2-step system that keeps high- and low-speed lines clean and fresh. Vacuum Shock is the first step and Vacuum Clean is the second to be performed on a monthly basis. Vacuum Clean can also be used to clean high- and low-speed lines from tip to trap by dissolving 5 tablets in the Pour and Clean premixed bottle for premixing concentrate. Neutral 7 pH formulation. Does not contain bleach, chlorine, iodine, peroxide, or any oxidizers. Compatible with amalgam separators.