Anti-Backflow Device for Floor Drain, 2 Pieces (Disc in

Floor drain backflow preventer: This floor drain odor stopper uses a solid body and silicone seal, providing fast drainage and a tight fit. The 39.3-inch (100 cm) sealing ring is adjustable by trimming. Automatic gravity valve: The floor drain backflow preventer features a gravity flap that opens when water flows and closes automatically when dry. This design blocks sewer gases, odors, and backflow without springs or complex parts, providing reliable everyday protection. Tool-free push-in installation: This floor drain insert installs in seconds with no tools required. Simply push the device into the drain opening. The adjustable seal fits standard drains with a diameter range of 1.25 to 1.65 inches and a maximum sealing ring size of 100 mm. Versatile compatibility Drains: This odor-stopper works with most standard floor drains in bathrooms, showers, toilets, kitchens, and balconies. The robust construction and silicone seal adapt to various pipe surfaces, ensuring a secure fit in multiple locations throughout the home. Robust Construction: Made from rust-resistant material with a rubber seal, this backflow preventer maintains its shape and function over time. The material resists rust caused by water and cleaning products, while the silicone seal remains flexible for a lasting seal.