Waterpik nano water flosser wp250 the first waterpik water flosser that can be powered from a shaver socket the waterpik nano water flosser is the easy and more effective way to floss designed for maximum flossing convenience this compact water flosser works with a shaver socket only and includes a reservoir that inverts for travel and storage waterpik water flossers are the only brand clinically proven to be more effective than traditional dental floss and sonicare air floss for reducing p