This shower siphon comes with a reducing ring design, allowing it to fit multiple drain pipe sizes for wide compatibility. Anti-odor shower valve features a built-in closed check structure that blocks sewer odors, keeping your space fresh. Equipped with a 10CM black installation plate, the anti-odor valve enhances installation adaptability for different bathroom layouts. copper shower siphon body stable structure, ensuring long-lasting performance for various bathroom drain setups. Regular cleaning of the shower siphon's surface debris helps maintain consistent odor-blocking effectiveness over time.