Functional design Our rubber pool plugs offer multiple uses beyond winterizing. They can effectively aid in pressure testing pool lines, detecting leaks, and performing repairs by stopping water flow to targeted sections. Winter protection Designed for use during harsh winter conditions, these pool plugs provide a simple and efficient solution to help prevent winter-related damage to the pool system. Standard specifications The expansion plugs are manufactured under strict factory quality control and meet or exceed standard specifications, delivering dependable performance and durability. Versatile use In addition to winterizing, these inground pool plugs serve as pipe stoppers to keep skimmers, return lines, and cleaners dry. They help prevent water ingress and related damage across a range of maintenance and repair tasks. Key attributes Material: high-quality rubber Function: seal and stop water flow in pool plumbing Compatibility: suitable for inground pool systems including skimmers, return lines, and cleaners Performance: reliable, durable, and long-lasting Use scenarios - Winterizing an inground pool by sealing suction and return lines to prevent freeze damage. - Pressure testing and leak detection by isolating sections of piping with plugs. - Equipment maintenance or repairs by stopping water flow and protecting components during work.