Universal Fit: Standard 1 1/4" connection thread and 32mm diameter drain hose, chrome bottle trap works for all types of bathroom sinks: most sinks standard, undermount, tub and pedestal sinks. Brass Construction: Heavy duty solid brass construction for sink drain, silicone gaskets to keep trap permanently sealed and free of limescale and corrosion. Easy installation: the trap contains all the parts necessary for the installation or replacement of the bathroom sink. Simple mounting with plug connectors. Hand-tightening the connections is sufficient. Easy to clean: The removable drain design prevents hair and other debris from entering the drain. Simply unscrew, disassemble and clean the bottle trap. Beautiful and practical: This odor trap is a wonderful blend of practicality and beauty. Moisture-proof, anti-corrosion, high temperature resistant. With multiple anti-odor designs. Thick rubber seal included to prevent leaks and odors.