General description You will receive 2 pieces of swimming pool antifreeze plugs made from high-quality rubber. These plugs are designed to effectively block pipes after draining the pool, preventing water from entering and causing freezing during winter. They can also be used as rubber stoppers for oil skimmers, water return, and cleaning pipes. Technical specifications Size: 38mm/1.5in Weight: 145g/5.1oz Material: High-quality rubber Usage The winterizing plugs are multipurpose and can be used to: Block oil skimmer, water return, and cleaning pipes to prevent water entry in winter Test the pressure of the swimming pool pipe Stop the flow of water into the swimming pool during equipment maintenance