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 SunHeater Pool Solar Blanket is a strong choice if you have a rectangular in-ground or above-ground swimming pool around 14 by 28 feet. Made from durable 12-mil thick polyethylene, it offers solid protection and heat retention. Its blue color and geometric bubble pattern are designed to maximize heat absorption by trapping the sun’s warmth and transferring it directly to your pool water, which can help raise water temperature naturally. The bubbles face downward on the water, which also reduces evaporation by up to 95%, saving you water and lowering refill frequency.

This cover helps keep debris like leaves and dirt out, cutting down on cleaning time and expenses. The ability to trim the cover means it can be adapted to fit other pool shapes like round or kidney-shaped pools, adding to its flexibility. It is foldable for easier storage despite its large size. The product suits pool owners looking for an effective, easy-to-use solar cover that helps maintain pool heat and cleanliness without complex installation.