The different colours are ideal for differentiating between family members and are sufficient for daily use and replacing old nozzles. For oral health, do not use the same nozzle together. The different shapes of the nozzles allow for specialised cleaning according to the different parts of the mouth and can alleviate oral problems more effectively, and the nasal cleaning nozzles keep the nose clean and comfortable and reduce bacterial growth. Jet tips can offer a good pressure, these classic jet tip kit can clean the shadow zone between teeth and below the gumline, easy to put on, work great on the cleaning job. Available for the Following Models: WP-100, WP-100W, WP-100C, WP-108, WP-112, WP-250, WP-260, WP-300, WP-450, WP-462, WP-560, WP-562, WP-563, WP-565, WP-660, WP-662, WP-670, WP-811, WP-861W, WP-900, WP-940, WP-950; FC168, FC188, FC158; V300, V400, V600, V660. Note: Periodontal pocket jet tip, nasal washer nozzles and toothbrush are not compatible with WP-560, WP-562, WP-563, WP-565. Replacement jet tips kit Compatible with Waterpik Oral Irrigator WP-100 WP-250 WP-300 WP-450 WP-560 WP-660 WP-811 WP-900 WP-950/Flycat/Waterpulse.