Philips HX3711/20

X-shaped water streams cover more area, providing a faster, more thorough clean than flossing. Effortless 2 Modes, 10 Intensity Levels: Get a clean tailored to your needs. Easily adjust the intensity to what feels best for you F3 QuadStream Nozzle: For maximum coverage and an extra thorough clean, use the Quad Stream nozzle to focus water into four wide streams between teeth and along gums. F1 standard nozzle: Standard nozzle for regular cleaning. A single jet of water is used to remove deposits and thoroughly clean between the teeth.