20' x 40' Rectangle In-Ground Winter CoverProtect your pool with the Rectangle In Ground Winter Cover, built with extra heavy duty materials for superior strength and durability. Measuring 25' x 45' with a 2' 1 2" overlap on each side, it effectively prevents algae growth and keeps debris out. The overlap also allows easy placement of optional water tubes (sold separately) to secure the cover more firmly. Ensure your pool stays clean and protected throughout the off season with this