Our mid-priced cover has all the strength and durability to ensure years of winter protection. Heavier woven polyethylene scrim and coating makes our 12 year cover strong and able to withstand wind, sleet and snow. The cover is U.V. stabilized to protect it from the harmful effects of the sun. It features a black underside to retard algae growth and features heat sealed seams to ensure a crystal clear pool next spring.