Durable ABS sink drain with overflow hole compatibility for use in kitchen and bathroom environments, supporting both horizontal and vertical installation to suit different spaces and preferences Fresh Air Assurance: features an Sbend water seal and siphon principle to prevent odor backflow, with a transparent odor core that allows you to monitor the system and maintain consistent airflow for odor performance Convenient tool setup: rapid sealing mechanism and silicone gasket seal work together to reduce the risk of leaks, making installation easy without the need for tools Spacesaving design: Pshaped elbow provides a tightspace solution that fits with mainstream basins, while offering flexible side or bottom connection options for versatile installation without sacrificing functionality Use scenarios Kitchen sink with an overflow hole: install horizontally under the sink to prevent odors from escaping while allowing easy monitoring of the drain's status through the odor core Compact bathroom vanity: in tight undersink spaces, the Pshaped elbow and flexible connection options enable a clean fit with reliable leak protection and easy access for maintenance Utility or laundry sink: suitable for side or bottom connections, accommodating varied cabinet layouts and ensuring odor control and straightforward installation in nontraditional sink setups