MidWest Canvas SC-CL-000205 Supreme Clear 24-Feet Round Above Ground Solar Cover (Discontinued by Manufacturer) Pool Size 24 ft. Round Cover Size 27 ft. Polyethylene coated, heat-sealed seams, protects your pool from snow, ice and sun includes Winch and Cable UV Resistant black underside 12-mm Clear bubbles UV protected Pulls in heat during the day Retains heat at night