Your best value for rectangular inground covers! Blue Line Economy 18 foot x 40 foot Rectangular In-Ground Pool Solid Winter Covers are the strongest winter covers in the business! Blue Line's solid covers are woven extra tight to resist tearing and even the worst winters. Covers are poly-treated with a U.V. coating for greater cover life. The black laminated bottom layer resists algae growth to help make spring opening easy. They are coated with an extra-thick, non-rotting polyethylene for lasting durability. This cover's size is 23 foot x 45 foot to cover a 18 foot x 40 foot rectangle in ground pool. The cover's extra 5 foot overlay accommodates water drop without creating extra slack that can result in wind damage. Heavy-duty water bag loops are placed every 4 feet to keep the bags and cover firmly anchored. Water bags and water blocks are sold separately. These solid winter covers are backed by a 10 year (2 year full) warranty and are navy blue with black undersides.
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