The Waterpik Ultra Water Flosser (WP-100) delivers the ultimate in water flossing performance. This performance countertop water flosser features a convenient on/off water switch on the handle, 360-degree tip rotation, and storage for extra tips built into the lid. This model comes with 6 flossing tips and 10 pressure settings. Product Features Easy-to-fill reservoir Reservoir capacity of 90 seconds (22 ounces) 360-degree tip rotation Advanced pressure control system with 10 settings On/Off