QruiLanTu 2Pcs Odor-Proof Shower Drain Plug with Magnetic Backflow Preventer, Hair Catcher, and Variable Diameter Washers, Fits drains, sewers, and pipes with inner diameters from 1.5" to 3.9"

• [Magnetic Seal Prevents Odors and Backflow] The built-in magnetic check valve is your secret weapon against odors and backflow. The check valve opens when water is present, allowing for fast and smooth drainage; it automatically closes when there is no water prevent odors and sewage from flowing back up.
• [Hair Catcher and Easy-Clean Design]Our shower drain filter features a fine-mesh hair catcher that effectively captures hair, soap scum, and debris, preventing them from entering the pipes. Simply remove it, rinse it under running water, and replace it.
• [Drainage Solution]This odor-proof floor drain is made of high-quality PPS material, which is durable and corrosion-resistant.Straight-drain design effectively prevents water accumulation .Prevents various drainage problems such as slow drainage, blockage, and short service life.
• [Universal Floor Drain] Say Goodbye to Size Problems! This large-diameter rubber reducer (3.93 inches/100 mm) can be easily trimmed with scissors. This multi-functional shower drain plug fits almost any bathroom, basement, or laundry room drain.
• [Easy Installation] Simply cut the reducer to the required size, insert the drain core and hair collector, and you're done! The silicone gasket ensures a leak-proof seal. It combines a basement drain backflow preventer and a bathroom hair collector in one, providing fast drainage and easy use.

Drain Filter，Shower Floor Drain Backflow Preventer，Crafted from premium 304 stainless steel，sealed drain design guarantees no odor and prevents drain backflow, ensuring a fresh and comfortable space.