Waterpik Ultra Water Flosser Easier and more effective than string floss! Healthier gums in just 14 days guaranteed. Removes 99.9% of plaque from treated areas.Up to 2x as effective as string floss, to improve gum health and reverse gingivitis. Cleans deep between teeth and below the gumline. Six unique tips included.Three year warranty. 90+ Seconds: Optimum water capacity - no refills. In-lid storage - keeps tips clean.10 Pressure Settings: Optimum control. Smaller and quieter than previous models. No. 1 dentists' choice. Clinically Proven Results: The Waterpik Water Flosser provides a unique combination of water pressure and pulsations to clean deep between teeth and below the gumline, removing harmful bacteria and debris that traditional brushing and flossing can't reach. It also massages and stimulates gums for enhanced circulation. Removes 99.9% of plaque. Effective Plaque Removal: Proven in laboratory tests to remove 99.9% of plaque from treated areas in 3 seconds. Independent study.  ...