Uxcell Sewer Backflow Preventer, Anti-Odor Core for 110mm/4.3" OD Vertical Tube

Description
[Material] - The backflow preventer is made of PVC, which has high hardness. It is corrosion-resistant and very durable. It makes full use of the principle of gravity to open and close automatically. It opens when exposed to water and closes automatically after drainage.
[Anti-odor & Anti-backflow] - It prevents the odor generated by sewage from overflowing and also prevents sewage from flowing back. It has a large-diameter drain outlet and a large drainage volume. It allows water to drain fast without worrying about clogging.
[Easy to Install] - It is easy to install, just put the back drain on the outside of the drain pipe and fix it with a clamp. It is a variable diameter design, don't worry about the pipe diameter not matching the backflow preventer exactly. If the pipe diameter range is 105-115mm, you can adjust the tightness of the clamp to fit the pipe.
[Wide Application] - This sewer pipe anti-odor core is suitable for horizontal pipes and can be widely used in drainage pipes of sewage tanks, etc. It can drain water at a high flow rate, prevent clogging, stop sewage backflow, and prevent bad odors from overflowing in sewers.