Toilet Flange Wax Ring with Backflow Prevention Valve Prevent Backflow: Equipped with a builtin backflow prevention valve to stop sewage from flowing back into your toilet system. This feature helps eliminate unpleasant odors and reduces the risk of leakage, ensuring a cleaner and more hygienic bathroom. LeakProof Seal: Constructed from durable butter glue material, the flange ring creates a secure and reliable seal between the toilet and the drain pipe. Its antileak design prevents water or waste from escaping, keeping your bathroom floor dry and sanitary. Easy Installation: Designed to fit a pipe with an inner diameter of 110 mm. Installation is straightforward—simply follow the provided instructions to position and secure the flange ring. The precise fit ensures a stable, leak connection with minimal effort. Strong and Durable: Made from quality butter glue material, the flange ring offers wear resistance and longlasting performance, maintaining its sealing ability over time even under frequent use. Suggested Applications: 1. Ideal for replacing wornout or damaged wax rings during toilet repairs, restoring proper sealing and preventing leaks. 2. Suitable for toilet installations where odor control and leak prevention are essential. 3. Helpful in bathrooms located below ground level or in areas prone to backflow issues, offering added protection against sewage . This wax ring with backflow valve combines effective leak prevention, odor control, and durability, making it an essential component for both residential and commercial toilet installations.