Solar Sun Rings Thermal Pool Cover, 60 in. Palm (SSRN-1)

**CHEAP AND EFFECTIVE WAY TO PROVIDE 21,000 BTUS OF HEAT PER DAY!** Extend your swimming season and slash your energy bills with our innovative Solar Sun rings. Solar pool sun rings are vinyl discs which lie on the surface of your swimming pool and use heat energy from the sun to raise the temperature of your pool. The blue layer of swimming pool solar sun rings absorbs approximately 50% of sunlight and converts it to heat, while allowing the remaining sunlight to pass into the pool for deep water heating. The upper clear layer of solar sun rings holds insulating air and also focuses sunlight on the lower blue layer of the discs. - Absolutely NO heating costs involved! - Solar sun rings will provide your pool with 21,000 BTU's of heat per solar ring per day. - Pool solar sun rings are passive solar heating devices. - These inflatable, 60 inch-diameter rings should cover 70% to 80% of your pool's surface. - Tested at the National Pool Industry Research Center at Cal Poly University for proven results. - Solar sun rings are great for use in all chlorine and salt water system swimming pools. - Do not overinflate. - Solar sun rings feature six magnets each so rings attach to each other easily. - Pool solar sun rings are compatible with automatic pool cleaners. - Allow you to open your pool earlier and close it later each swimming season. - Constructed from two sheets of heavyweight, UV-resistant vinyl for great durability. - Environmentally friendly, green option for pool heating. - Easier to handle than solar pool blankets. - Easy to install and easy to remove. **Pool Size ****Number of Solar Sun Rings**12' Round 3 15' Round 5 18' Round 7 21' Round 9 24' Round 10 28' Round 14 16'x32' Oval/Rectangle 10 18'x36' Oval/Rectangle 14 20'x40' Oval/Rectangle 14