Keep your pool clean, pristine, and heated when not in use with Bestway's round solar pool cover. The specially designed solar pool cover creates a greenhouse effect in your pool. By floating directly on the water's surface, the cover retains the sun's heat to keep the water warm and keep dirt away. Covers for above-ground pools are an essential accessory as they prevent algae growth and reduce the amount of chemicals needed to keep your water in top shape. This cover is perfect for a Bestway round frame pool with a diameter of 3.05 m, a round steel wall pool, and a round inflatable ring pool.