the floor drain Brass structure: the floor drain is made of high quality copper. The surface is treated with brushed chrome, and the rectangular design is simple and generous. Will not burst or leak in extremely cold environments. It is resistant to corrosion by weak acids and weak alkaline media, and has strong resistance to high pressure. Deodorization: The water outlet of the drain pipe has a 'locking mechanism' called a gravity spring . Its automatic opening and sealing function can prevent unpleasant odors from entering the room. The double-layer filter adopts a detachable mesh and hair filter design, which helps to effectively collect drainage, prevent clogging, and is easy to clean and maintain. Please confirm the size before purchasing Siphon drain square shower floor: 30 x 8cm/11.8in x 3.15in large flow. Please confirm the size before purchasing, so as not to appear inappropriate and affect your use Scope of application: This rectangular floor drain is a hair filter installed