10 Best Swimming Pool Solar Covers 2025 in the United States

The In The Swim 20' x 40' Ultra Silver Rectangle Solar Pool Cover is designed for effective solar heating of both above-ground and in-ground pools. With a substantial 16 Mil thickness, this cover can increase water temperature by up to 18 degrees, making it ideal for extending your swimming season. The silver color enhances light penetration, which helps in rapid temperature increase. It also effectively prevents evaporative heat loss during cooler nights, thus maintaining the warmth of the pool water.

However, it requires careful monitoring of chlorine and pH levels to ensure longevity and performance. Chlorine levels should be below 2.5 ppm, and pH levels above 7.2 when using this cover. Utilizing a solar cover reel can improve convenience and reduce wear and tear, but it may add to the initial setup cost. The cover is well-rated, holding a 4.4 out of 5 stars from 414 customer reviews, indicating general satisfaction among users.

Given its size, shape, and UV protection, this cover is suitable for large rectangular pools, and its bubble design aids in effective heat retention. However, its weight (58 pounds) might make handling challenging without a reel. This solar cover is a good investment for pool owners looking to maintain a warm pool temperature with minimal heat loss.

The BigXwell Solar Pool Cover is a durable and effective option for maintaining your pool's temperature. Made from high-quality polyethylene (PE) material, this cover is designed for longevity and can withstand harsh weather conditions. Its 16-mil thickness and blue color help maximize heat retention by trapping solar energy using thousands of thermal bubbles. This design not only heats your pool during sunny days but also retains the warmth during cloudy days or chilly nights, ensuring a comfortable swim regardless of the weather.

The cover also significantly reduces water evaporation by up to 95%, which is beneficial for water conservation and reducing the need for frequent refills. Measuring 16 x 32 feet, it fits rectangular in-ground pools but can be trimmed to suit pools of various shapes and sizes, making it versatile. However, at 50.9 pounds, it might be a bit heavy for some users to install or remove without assistance.

Its floating installation type is simple, although it requires regular manual care, such as hand washing with mild detergent and air drying.

The In The Swim 18' x 36' Premium Blue Rectangle Solar Pool Cover is designed to help heat your pool efficiently and extend your swimming season. Made from durable polyethylene with a solid 12-mil thickness, it offers good insulation to raise your pool's surface temperature by up to 15 degrees. Its light blue color strikes a nice balance by absorbing and retaining heat without overheating the water. The rectangular shape and size fit standard pools well, whether above ground or inground. This cover floats on the water surface and helps prevent heat loss during cool nights, which is very useful for maintaining comfortable water temperatures.

It works best when pool chlorine and pH levels are within recommended ranges, so regular pool maintenance is necessary to keep the cover in good shape. While it does not explicitly mention UV protection or a bubble design, the thickness and material type generally provide some resistance to sun damage and help trap heat through tiny air pockets. Handling the cover can be easier if you use a solar cover reel, which helps reduce wear and tear and makes putting it on or taking it off less cumbersome. At just over 50 pounds, it’s manageable but might require some effort to move.

This cover is a solid choice for pool owners wanting an affordable and effective way to conserve heat and reduce evaporation. It’s especially good if you want to comfortably extend your swimming season without complicated installation. If you’re looking for extra UV protection or specialized bubble designs, you might want to explore other options. This product fits well for everyday pool heating needs and basic heat insulation.