The Skimmer Plug by Simpooltec offers a simple and proven method of winterizing your aboveground pool skimmer for the off-season, without draining water from the pool, and without having to buy a new skimmer faceplate. The Skimmer Plug is made to fit the inside of your existing aboveground or inground skimmer faceplate perfectly, creating a water-tight seal that effectively keeps your skimmer dry all winter long, preventing freeze damage without draining the pool water. The Skimmer Plug's patent-pending Rovaseal thermo-insulated layer tightly grips & plugs off the faceplate. No tools are required! Simply press the Skimmer Plug in place the skimmer and forget about it! Also great to use to easily block the skimmer off to perform pool maintenance.