10 Best Solar Pool Covers 2025 in the United States

The In The Swim 20' x 40' Premium Blue Rectangle Solar Pool Cover is designed to help warm your pool water by up to 15 degrees, thanks to its 12 mil thickness. This thickness strikes a good balance, making it durable enough to retain heat and protect the pool water from evaporative loss during cooler nights. The light blue color is chosen to optimize heat absorption without overheating, which can be a plus for extending your swimming season in both above-ground and inground pools.

The rectangular size covers standard pools well, and its material is made to handle typical pool conditions, but it’s important to maintain proper water chemistry—chlorine below 2.5 ppm and pH above 7.2—to avoid damage to the cover. Using a solar cover reel is recommended to make handling easier and to prolong the cover’s life by reducing wear and tear. Customers rate it positively, reflecting satisfaction with its performance and value.

Weighing nearly 50 pounds, the cover can be a bit heavy, which might make it tricky to handle without assistance. This cover is suitable for pool owners looking for a reliable and effective way to heat their pool and reduce water evaporation, especially if they are mindful of pool chemistry and use accessories like a reel for convenience.

This Shop Square solar pool cover is made from durable 12 mil thick PVC material and comes in a large 20' x 40' rectangular shape, which suits both inground and above-ground pools. Its attractive blue color helps in effectively absorbing and retaining heat, offering a warmer swimming experience, which is a key benefit for solar covers. The cover is designed to reduce water evaporation by up to 95%, helping you save on water and pool maintenance. It also acts as a barrier against leaves and debris, keeping your pool cleaner and reducing cleaning effort.

One of its practical advantages is its versatility: you can easily trim it to fit pools with irregular shapes by cutting along marked lines, making it customizable. While the cover is manual to install and remove, it’s relatively lightweight for its size and thickness, though handling care is important to avoid damage.

This solar blanket represents a solid choice for pool owners looking for a cost-effective way to retain heat, reduce evaporation, and keep debris out, especially if they want a customizable fit with a classic blue look.