Check the listing for details. Floor Drain Anti-Odor Core Shower Floor Drain Backflow Preventer Black 2PACK. Color: Black, Condition: New. Listed at 11.66 USD. Description[Material] - Our anti-odor floor drain core is made of plastic, which is very durable and anti-slip, there is no odor and no need to worry about deformation. It is adapted to the floor drain, can cover the sink and drainage pipes floor drain well and can be used repeatedly.[Fast Drainage] - The drain backflow preventer has a large capacity, is easy to drain, and effectively filters hair. The sewage easily flows into the drain pipe, has a large discharge volume, and prevents water backflow. Effectively deal with water accumulation problems in bathrooms and kitchens.[Easy to Use & Clean] - Just place the floor drain core into the drain, no need to assemble or disassemble anything. It fits well with the drain spout, holds firmly to the pipe, and will not shift even if it is flushed with water.Description[Material] - Our anti-odor floor drain core is made of plastic, which is very durable and anti-slip, there is no odor and no need to worry about deformation. It is adapted to the floor drain, can cover the sink and drainage pipes floor drain well and can be used repeatedly.[Fast Drainage] - The drain backflow preventer has a large capacity, is easy to drain, and effectively filters hair. The sewage easily flows into the drain pipe, has a large discharge volume, and prevents water backflow. Effectively deal with water accumulation problems in bathrooms and kitchens.[Easy to Use & Clean] - Just place the floor drain core into the drain, no need to assemble or disassemble anything. It fits well with the drain spout, holds firmly to the pipe, and will not shift even if it is flushed with water.