10-Year 21 ft Round Pool Winter Cover

This pro-strength polar winter cover is made with extra-wide fabric to reduce the number of seams, resulting in fewer stress-areas and a longer-lasting cover Triple laminated poly-constructed inner scrim is topped by a premium weather resistant top coating to resist damaging U.V. rays. Exceptionally lightweight, making installation on your swimming pool a snap All seams are heat-sealed (not sewn) to prevent water from seeping through the cover into your swimming pool. All pool covers come complete with heavy-duty vinyl coated cable and winch, and have a black underside to inhibit algae growth. Pool cover color is Navy Blue.