Extend your swimming season with the Blue Wave 12-Mil Round Solar Blanket, a premium solar pool cover designed to maximize heat retention and reduce evaporation for above-ground pools. This energy-efficient thermal cover utilizes fade-resistant thermal bubbles to trap heat from the sun, raising water temperatures by up to 15°F while keeping your pool warm even on cooler days. By preventing up to 95% of water evaporation, this bubble pool cover helps conserve water, reducing maintenance and saving on heating costs. Designed for durability, this heavy-duty 12-mil solar blanket is built to withstand harsh weather conditions and pool water without fading or deteriorating. It also serves as a protective barrier against leaves, bugs, and debris, keeping your pool cleaner for longer. Whether you need a solar pool cover for a 21 ft round pool, a 24-foot above-ground pool cover, or a 30 ft round solar cover, this versatile blanket is available in multiple sizes—including 15 ft, 18 ft, 21 ft, 24 ft, 28 ft, and 30 ft round—to fit a wide range of above-ground pools. This swimming pool cover is designed for easy use and customization. It floats on the surface with the bubbles facing downward, ensuring maximum heat retention. If needed, the solar blanket can be trimmed to achieve a perfect fit without affecting performance. Ideal for summer use or as a thermal cover for pools, the Blue Wave 12-Mil Solar Blanket is a reliable and cost-effective way to keep your pool warmer, cleaner, and more efficient. Includes: (1) 8-Mil Round Solar Pool Cover with a 5-year limited warranty.