Threaded Antifreeze Pool Plug for Lines and Pump Drains Key benefits Protects against freezing: blocks water in lines and pump drain ports to prevent freezing and cracking of pool pipes during cold weather, helping preserve the integrity of the pool system. Prevents equipment damage: reduces the risk of structural and equipment damage caused by ice formation in plumbing and pump components. Secure, easy installation: threaded design provides a tight, reliable fit for quick installation and removal during seasonal maintenance. Practical and reusable: designed for repeated use during winterization and routine service, simplifying pool upkeep. What it does Functions as an antifreeze plug for pool pipes and pump drain openings, sealing plumbing openings to keep water from freezing in place. Acts as a stopper plug for inground pool plumbing and as a drain plug for pool pumps and drain ports. Compatibility and fit Intended for use with inground pool lines, pump drain ports, and similar plumbing openings. Verify thread type and size before to ensure a proper match. Suitable for pool maintenance tasks that require sealing pipe ends or drain ports during seasonal shutdowns or repairs. Installation and performance Threaded design ensures a secure seal and simple handtight installation. Removes easily for spring reopening or service. Provides reliable protection against freezerelated damage when used as part of a complete winterization procedure. Common use scenarios Winterizing an inground pool: Install in lines and pump drain ports before freezing weather to protect pipes and equipment over the offseason. Pump service and storage: Seal pump drain openings during maintenance or when storing equipment to prevent residual water from freezing and causing damage. Emergency cold snap protection: Quickly install threaded plugs in exposed plumbing if unexpected low temperatures threaten the pool system. Notes and recommendations Confirm thread compatibility with your pool lines and pump drain ports prior to installation. Use as part of a comprehensive winterization plan that follows manufacturer recommendations for your pool and pump equipment. Periodically inspect plugs for wear and proper sealing and if threads or sealing surfaces become damaged.