Excellent quality: The casting process is made of high-quality brass and is a one-time seamless casting, strong and durable, and will not collapse for a long time. Each floor drain has undergone multiple processes to be carefully polished, rounded, and scratch-resistant. Function: The shower drain is a practical, deeply sealed, and odor-proof floor drain core that can prevent odor control in the sewer channel, prevent insects, prevent sewer channel backflow, filter, and prevent channel blockages. Easy to install: The floor drain with odor trap is easy to install, plug-and-play floor drain eliminates odors. proof, installation can be completed quickly by one person. Small Diameter: Floor drain outside, the diameter of the lower end is only 27mm and can be easily inserted into various types of sewer gutters to replace the smelly original floor drain. Applicable required sewer pipe openings: 27-55mm Various Occasions: Shower odor trap perfect for kitchen sinks, bathroom floors, toilets