10 Best Solar Pool Covers 2025 in the United States

The BigXwell Solar Pool Cover is a 16-mil thick polyethylene cover designed for in-ground pools, measuring 16 by 32 feet in a rectangular shape. Its blue color helps it absorb and trap solar heat effectively, which warms your pool on sunny days and helps maintain temperature when it's cloudy or cool. This makes it a great choice if you want to swim in warmer water without extra heating costs. The cover features thousands of small thermal bubbles that boost heat retention and reduce water evaporation by up to 95%, saving you from frequent refills and water waste.

It’s lightweight and easy to handle, and can be trimmed with scissors to fit pools of various shapes, adding versatility. The material is durable enough to withstand harsh weather, but since it's polyethylene, it requires gentle care like hand washing and air drying to maintain longevity. One downside is that it floats on the water and doesn’t have a rigid locking system, so it may shift during windy conditions. Also, while the cover offers good insulation and UV protection, it’s primarily suited for use during the warmer months and may not be as effective in extreme cold.

If you have a rectangular in-ground pool and want a cost-effective way to keep your water warm and reduce evaporation, this cover offers a combination of durability and practical features that make it a solid choice.

The BigXwell Solar Pool Cover is designed to help heat in-ground pools naturally by harnessing sunlight, which can save you money on electric or gas heaters. Made from durable polyethylene with a solid blue color, it’s a heavy-duty option that resists wear from weather and pool chemicals. At 16 mil thickness, it strikes a good balance between toughness and flexibility, making it relatively easy to handle despite weighing over 50 pounds.

Sized at 18 by 36 feet with a rectangular shape, it fits larger pools well. This cover floats on the water’s surface to trap heat and reduce water and chemical evaporation, which also helps keep your pool cleaner by blocking debris like leaves and dust. While the product doesn’t explicitly mention UV protection, the material’s thickness and quality imply decent resistance to sun damage, contributing to its longevity.

The cover is straightforward to install and remove with a pull-on closure style, though its size and weight might require some effort or assistance. One limitation is that it’s specifically sized, so if your pool shape or size varies significantly, it might not provide a perfect fit. Also, as a floating cover, it offers less protection than solid safety covers against accidental pool entry. This solar pool cover suits pool owners looking for an affordable, energy-saving way to maintain warmer water while reducing maintenance, especially for medium to large rectangular pools.

The Sun2Solar Blue 20 ft x 40 ft Rectangle Pool Solar Cover is designed to help heat and maintain the temperature of rectangular inground or above-ground pools. Made from resin material with a solid blue color, it offers good UV resistance to protect the pool water from sun damage and helps retain heat efficiently. This cover can raise pool water temperature by up to 15 degrees and reduce overnight heat loss, which is a solid feature for those wanting to extend their swimming season.

It also conserves water by preventing up to 95% of evaporation, which means fewer refills and chemical adjustments. The 20 by 40 feet size matches standard pool dimensions well, and the rectangular shape fits typical pool layouts. The inclusion of six heavy-duty grommets can make it easier to secure the cover in place. Users will find it lightweight and easy to handle, making installation straightforward.

With a good balance of heat retention, evaporation prevention, and debris blocking, this solar cover is a practical choice for pool owners who want simple and effective heating support without complicated installation or maintenance. The cover requires hand washing only, meaning it needs gentle cleaning to be maintained well.