DUI1113 Features: * Four-foot overlap makes this cover easier to secure * Black bottom side prevents algae growth * Top side is coated with UV-resistant high density polyethylene * Perimeter of the cover features a high quality binding that prevents against wear and tear * Features a 14 x 14 scrim (threads per square inch) * Constructed with a polyethylene material that weighs 5.2 oz./yard2 * Two grommets are placed on center every four feet Includes: * With grommets, use the included winch and cable to secure your pool cover Warranty: * Comes with a twenty-year warranty (3 years full)