1.5 inch threaded winterizing plugs with O ring, 5 pieces, size 2.2 x 1.3 inch Protects pool and spa plumbing during seasonal shutdowns and maintenance. These threaded line plugs seal standard 1.5 inch and filter drain fittings to stop water ingress and help make winterizing and repairs faster and cleaner. Key benefits Simple and effective sealing: Threaded design plus included O ring creates a snug seal to reduce leaks and block debris. Ready for maintenance and winterizing: Use to close lines and filter drains when draining, servicing, or storing equipment. Pack of five: Multiple plugs let you cap several lines at once or keep extras on hand for future use. Compact, clear sizing: Designed for fittings with a 1.5 inch thread and a body dimension of approximately 2.2 x 1.3 inch for predictable fit. Easy to install and remove: Screw into place by hand; O ring aids a reliable seal without special tools. Features and compatibility Function: Threaded plug for capping pool and spa lines and filter drains. Compatibility: Fits standard 1.5 inch threaded lines and filter drain openings used on many pools and spas. Seal: Supplied O ring helps form a tight seal between the plug and fitting. Quantity: 5 piece set so you can cover multiple lines or keep spares. Use scenarios Winterizing a residential pool or spa: Cap each line before draining to help prevent water and debris from entering plumbing. Routine equipment service: Close filter drain or ports during pump and filter maintenance to isolate sections of the system. Seasonal storage or transport: Seal lines when storing covers, pumps, or other components to avoid contamination. What you get Five 1.5 inch threaded line plugs, each with a matching O ring, sized approximately 2.2 x 1.3 inch for standard pool and spa fittings.