WIDE APPLICATIONS: Drain Backflow Preventer suitable for bathroom floors, kitchens, balconies, etc., can also be used for your garden drainage system, to provide you with a convenient way to investigate the domestic sewage treatment. FUNCTIONAL: Backflow Preventer can effectively prevent impurities and hair from clogging the sewer, bring effective drainage tools to your bathroom, and keep your bathroom and kitchen clean and fresh.FLEXIBLE AND DETACHABLE DESIGN: Automatic opening and closing, compact thread design at the core of the drainage pipe to facilitate smooth drainage. EASY TO INSTALL: You first need to determine the size of the drainage hole of your home, and choose it according to your needs. Shower Floor Drain only takes a few minutes to complete the installation without breaking the floor. HIGH-QUALITY: Shower Drain Cover is made of high-quality stainless steel, has good sealing performance, can effectively block peculiar smell, hair and large-scale dirt, and is durable.