- Winter Frost Protection: Our Pool Skimmer Plug is designed to prevent cracks in the skimmer housing by stopping the expansion of freezing materials during the winter months. This frost compensator makes winterizing your pool hassle-free. - Durable Construction: Made from high-quality ABS material, this Pool Skimmer Plug is built to last. It provides reliable, long-term protection against even the harshest winter conditions, ensuring your skimmer remains intact. - Versatile Design: The Pool Skimmer Plug fits skimmer inlets of 3.8 cm or 5.1 cm, ensuring compatibility with most large and deep skimmers. This versatile design accommodates a wide range of skimmer models, making it an essential accessory for pool maintenance. - Easy Installation: For effective use, ensure pipes are dry before installation. The plug can be tightened effortlessly, allowing you to quickly secure it in place without wasting time in the winter and preventing water accumulation under the pool. - Practical Applications: Ideal for homeowners preparing their pools for winter or pool maintenance professionals looking to safeguard skimmers during colder months. Use it to protect your skimmer from freezing damage, ensuring a worry-free winter and a smooth spring opening.