Use for for periodontal pockets and furcations, a soft rubber tip designed for gentle, low-pressure delivery of therapeutic rinses below the gumline. To alleviate the symptoms of gingivitis, periodontitis, periodontal pocket depth reduction. Compatible with: - Cordless Express Water Flosser; WP-100, WP-112, WP-100W - Ultra Water Flosser; WP-260 - ..