Extended silicone design: A longer and thicker silicone profile provides a tight, leak resistant fit that helps prevent leaks and keeps odors and sewer gases at bay. Triple sealing system: Advanced sealing technology with embedded plates, molecular putty, and silicone rings delivers robust protection against scents and sewer gases. 90degree auto close mechanism: Gravitydriven flap seals automatically when dry, blocking sewer gases while allowing easy drainage. Wide inner diameter: The larger diameter promotes improved water flow and enhances drainage efficiency to maintain a clean toilet system. Use scenarios Residential bathroom replacement: Ideal for replacing worn seals in standard toilets to prevent leaks and reduce odors, improving overall bathroom hygiene. Multioccupancy or rental properties: Helps minimize odor complaints and maintain sanitation between tenants with reliable, longlasting sealing performance. traffic or frequentuse environments: Provides dependable drainage and odor control in busy households or facilities where quick, automatic sealing is beneficial.