Our Swimline 18 pool size 22 cover size Above Ground Silver King Winter Swimming Pool Cover is the best way to keep your pool in the best condition during the winter months while helping to make the pool reopening in Spring a breeze. Our cover will keep debris and water out of your pool. This cover is made of laminated woven polyethylene sheeting with a high tensile stitching. The proprietary formulation allows it to be lightweight for ease of installation while providing a superior level of durability that will help to extend the life of your pool. Cover comes complete with perimeter grommets steel cable and winch. Properly winterize your pool with this winter cover to be sure your pool will be ready for another season of family fun!