10 Best Swimming Pool Solar Covers 2025 in the United States

This Real Relax solar pool cover is designed to help pool owners save on heating costs by capturing and transferring solar heat into the water, thanks to its bubble design with the bubbles meant to face down. Made from durable 16 mil thick polyethylene, it offers good strength and resistance to tearing, promising a longer lifespan. Its blue color helps absorb sunlight while also keeping the pool looking clean and bright. Sized at 20 by 40 feet, it suits most rectangular inground or above-ground pools, and you can easily trim it to fit other shapes if needed. The cover also reduces water evaporation by up to 95%, helping to conserve water and reduce chemical loss. Another plus is its UV resistance, which protects it from sun damage and extends its usability.

On the downside, the cover is quite heavy at 61 pounds, so handling it might be a bit cumbersome during installation or removal. Also, while it fits rectangular pools well, irregular pool shapes will require careful cutting for a proper fit, which could be tricky for some users. This solar blanket represents a solid choice for anyone wanting a reliable, heat-retaining pool cover that also keeps debris out and lowers maintenance needs.

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 Blue Wave NS530 14-mil Solar Blanket is designed for rectangular in-ground pools measuring 20 by 40 feet. Made from durable plastic with a clear color, this cover is 14 mil thick, which means it offers good strength and longevity while being flexible enough to handle regular use. Its clear color helps maximize sunlight absorption, which aids in warming your pool water effectively. The solar blanket's bubble design acts like tiny insulation pockets that trap heat, helping increase your pool temperature by up to 15 degrees Fahrenheit and minimizing heat loss during cooler nights or cloudy days. Additionally, it offers UV resistance, protecting it from sun damage and chemical wear, which contributes to its durability. The thickness and bubble structure balance heat retention and ease of handling, as very thick covers can be heavy and harder to manage.

The product also comes with a solid 6-year warranty, showing confidence in its lasting quality. However, being made of plastic, it requires careful handling to avoid punctures, and as a floating cover, it won't provide a complete safety barrier. This solar blanket is ideal for pool owners who want an energy-efficient, cost-effective way to extend their swimming season and reduce heating bills, especially those with a matching rectangular pool size. For those seeking a simple cover that boosts temperature and reduces evaporation without complicated installation, this is a practical choice.