The Waterpik Classic Professional water flosser powers away plaque and debris between teeth and below the gumline. Six water pressure settings let you customize gentle-to-deep cleansing, while a spacious 35-ounce reservoir reduces the need for refills. To enhance treatment of gum disease and periodontal pockets as prescribed by your dental professional, the Waterpik Classic Professional water flosser includes a special reservoir and the unique Pik Pocket tip for gentle delivery of antimicrobials and special rinses below the gumline. The special 360-degree rotating tip handle easily reaches your whole mouth, even back teeth. The Waterpik Classic Professional water flosser removes up to 99.9% of plaque bacteria that causes gingivitis, cavities, and bad breath from treated areas and is clinically proven up to 2X as effective as string floss for removing bacterial plaque and improving gum health. Waterpik is the #1 water flosser brand recommended by dental professionals, and the Waterpik Classic Professional water flosser is accepted by the American Dental Association (ADA) for safety and effectiveness. Compatible with 120VAC/60Hz outlets, for use in North America Only. Backed by a 2-year manufacturer's limited warranty, see product manual for details.