GPC Winter Covers 30' x 50' Green/Black Bound Deluxe Rect IG Winter Cover for 25' x 45' Rect PoolProtect your in ground pool all winter with this durable and reliable Bound Rectangle Winter Cover, designed to fit securely over 25' x 45' rectangular pools. Crafted from high quality, cold resistant materials, this cover withstands harsh winter conditions while preventing debris, dirt, and algae buildup. The green and black reversible design offers a stylish look while reflecting heat and reducing sunlight exposure to minimize algae growth.