With state-of-the-art technology, the Waterpik Ultra is the ultimate in water flossing performance. It features ten pressure settings, a contemporary design that is smaller and quieter than previous models, a covered reservoir with in-lid tip storage and six unique tips. This model is the most recommended by dental professionals.Features”BenefitsClinically proven to be twice as effective as traditional string floss for improving gum health1 Proven in laboratory tests to remove 99.9% of plaque from treated areas with a 3 second application Clinically proven 3 x as effective as string floss for cleaning around braces with the orthodontic tip Removes bacteria deep between teeth and below the gumline where brushing and traditional flossing can’t reach Massages and stimulates gums to improve circulation and keep your gums strong and healthy Great for people with implants, crowns, bridges, and veneers Leaves your mouth feeling incredibly fresh and clean Healthier Gums in 14 Days