10 Best Pool Solar Covers 2025 in the United States

This solar pool cover is made from durable 12 mil thick polyvinyl chloride (PVC), a strong material designed to last while efficiently retaining heat in your pool. Its blue color not only looks attractive but also helps in absorbing sunlight to warm your water. Sized at 20 by 40 feet and rectangular, it fits most inground and above ground pools, and it can be trimmed to fit irregular shapes easily, thanks to its bubble design with bubbles facing down.

The cover offers excellent water evaporation reduction—up to 95%—which means you'll save water and reduce the need to refill your pool frequently. It also works as a barrier to keep leaves and debris out, helping to keep your pool cleaner and reduce maintenance. While the cover does not explicitly mention advanced UV protection, the PVC material and thickness contribute to durability and some UV resistance.

Installation and removal are manual, which may require some effort depending on your pool size and setup. This product is a practical, easy-to-use cover that helps warm your pool, conserves water, and keeps it cleaner throughout the swimming season.

The In The Swim 18' x 36' Premium Blue Rectangle Solar Pool Cover is designed to heat your pool efficiently while reducing water evaporation. Made from durable polyethylene material with a thickness of 12 mil, it can raise your pool water temperature by up to 15 degrees, allowing for a longer swimming season. The light blue color allows the sun’s heat to pass through while retaining warmth during cooler nights.

Its rectangular shape and large size fit most above-ground and inground pools of similar dimensions, making it a versatile choice. The cover helps prevent evaporative heat loss, conserving water and energy. It is best used when your pool’s chlorine and pH levels are within recommended ranges to avoid damage.

The cover floats and is easy to place on the water, but removing it without a reel might be cumbersome due to its size and weight (about 51.5 pounds). Using a solar reel is recommended to make handling easier and to extend the cover’s life. Some users may find the care instructions require attention, as it needs hand washing and careful storage. This cover provides a practical and effective way to warm your pool and reduce water loss, though it requires proper maintenance and chemical balance.

The Sun2Solar Blue 20 ft x 40 ft Rectangle Solar Cover is designed for rectangular inground and above-ground pools, offering effective solar heating and protection. Made from durable resin material, this cover features a bubble design that traps heat efficiently, helping raise the pool temperature by up to 15 degrees and retaining warmth overnight. Its blue color is common for solar covers and helps with sunlight absorption. Sized to fit a 20 by 40-foot pool, it provides good coverage and includes extra overlap to fit around any pool protrusions.

The cover also significantly reduces water evaporation—up to 95%—which helps save water and lowers chemical use. It prevents leaves and debris from entering the pool, reducing cleaning efforts. While the cover is lightweight enough for easy installation and removal, it weighs about 40 pounds, which might require some care during handling. The material requires hand washing, so it needs gentle maintenance compared to more durable pool covers.

This product represents a solid choice for pool owners looking for an affordable way to keep water warm using free solar energy, especially if the pool size matches the cover dimensions. For those with non-rectangular pool shapes or who need a cover with enhanced durability or automatic features, it may be beneficial to consider other options.