Swimline 18 x 38 Foot Oval Above Ground Heavy Winter Swimming Pool Cover, Blue 18 x 38 foot heavy duty oval above ground winter swimming pool cover Fits oval, 18 x 38 foot above ground pools UV inhibitors protect the cover from sun damage 3 4 foot overlap (cover size is 3 4 foot larger than pool size) Highly resistant to punctures, tears, chlorine stains and other chemical stains