General description This rubber winterizing plug is designed to protect your pool pipes during winter, preventing water from entering and freezing, which can cause damage. By using these plugs, you can extend the life of your pool pipes and minimize defrosting issues. Technical specifications Diameter: 63mm Material: High-quality rubber and metal Features: Maximum extensibility for a tight seal, corrosion resistance, rust resistance Usage Used to block pool pipes, oil skimmers, return pipes, and detergent pipes Can be utilized for pressure testing of pool pipes or leak detection Prevents water from flowing out during equipment maintenance Installation Easy to install in seconds without any tools Moderate size for convenient handling