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 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 solid choice for pool owners looking to extend their swimming season by trapping solar heat. Made from durable polyethylene with a 12-mil thickness, it strikes a good balance between sturdiness and flexibility. Its blue color is common for solar covers and helps with UV protection, while the thousands of thermal bubbles efficiently capture and hold heat, warming your pool during sunny days and retaining warmth at night or on cloudy days. Sized at 16x32 feet and rectangular, this cover fits many above-ground and in-ground pools and can be trimmed to fit pools of various shapes, which adds convenience.

One of its strengths is reducing water evaporation by up to 95%, which helps save water and reduce pool maintenance. The cover is lightweight and easy to install or remove, making it practical for regular use. While it offers good UV protection, the polyethylene material may still degrade over time with continuous exposure to harsh weather, so proper off-season care is recommended to extend its life. Also, the thickness, while decent, isn’t the heaviest available on the market, which might affect durability in very rough conditions.

The BigXwell Solar Pool Cover is ideal for pool owners who want an affordable, effective way to keep their pool warm and minimize water loss. It is not the most heavy-duty cover but performs well for typical home pool use, especially when trimmed for a perfect fit.