Get rid of that heavy, awkward, and difficult to handle solar blanket. These floating rings gather and amplify sunlight enough to raise the temperature of an average-sized pool by 3°-4° F per week while covering just 70% of the pool’s surface. That’s with no electrical heaters.

The rings connect with low-strength magnets that you can quickly and easily separate, making these rings much simpler to remove from your pool than traditional covers.

Check price and availability at Hammacher Schlemmer.

“Rated at 21,000 BTUs, each ring also acts as a partial barrier, helping to slow evaporation of water and chemicals, in addition to reducing heat loss at night…The inner chamber of each ring inflates with two breaths and the outer chamber should be inflated until firm.”