Swimline 18' Round Winter Swimming Pool Cover + 4'x4' Winterizing Air Pillow

18' Round Winter Above Ground Pool Cover plus Brand New Swimline Air Pillow Pillow is used to keep water off the top of your pool cover Pool Size: Fits 18' Round Pools Protects From Sun Damage 3 4 Foot Overlap (cover size is 3 4 ft larger than pool size) Swimline 4' x 4' Air Pillow Pillow is used to push your pool cover up off the water's surface so the water won't freeze to your pool cover For Above Ground Pools Pushes your pool cover up off the water's surface so the water won't freeze to your pool cover Keeps water off the top of your pool cover