Swimline 15x30 ft. Heavy Duty Oval Above Ground Winter Swimming Pool Cover, Blue 15 x 30 foot heavy duty round above ground winter swimming pool cover Fits oval, 15 x 30 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