Swimline 24 Ft Round Above Ground Swimming Pool Winter Cover, Blue | PCO827 Keep your pool in the best shape during the off seasons with this Swimline 24 Foot Round Above Ground Pool Winter Cover Fits 24 foot above ground swimming pools U.V. inhibitors protect the cover from sun damage 3 to 4 foot overlap (cover size is 3 to 4 ft larger than pool size) Highly resistant to punctures, tears, chlorine stains, and other chemical stains