Protect the centerpiece of your summer fun through harsh winter months with this durable and innovative Robelle Super Guard Winter Cover. The premium design features a blue topside made of durable, UV-resistant polyethylene and an underside colored in black that prevents the growth of potentially destructive algae. The cover also comes with a scrim of eight vertical and eight horizontal threads per inch, plus a four-foot overlap that ensures complete coverage of the area of your pool. A plastic coated cable is threaded through aluminum grommets and you can tighten the cover around the perimeter thanks to the included ratchet lock. The cover comes with an eight-year warranty.