The Waterpik Ultra countertop water flosser oral irrigator WP-112 in Black provides excellent water flossing performance. Tested and trusted Waterpik is the #1 water flosser brand recommended by dental professionals. From the first brand in its class accepted by the American Dental Association (ADA) for safety and effectiveness the Waterpik Ultra water flosser removes up to 99.9% of plaque and is clinically proven up to 50% more effective than string floss for improving gum health. It cleans deep between teeth and below the gum line where traditional brushing and flossing can t reach using a unique combination of water pressure and pulsations. And it s great for anyone with braces implants crowns bridges or periodontal pockets. An easy and effective way to floss the Waterpik Ultra water flosser features 10 pressure settings a contemporary design a covered reservoir with in-lid tip storage and water on/off switch built into the handle to easily control water flow.