Solar Sun Rings Palm Tree Design is a passive solar swimming pool heating device made from two sheets of heavyweight U.V. resistant vinyl. The upper clear layer of the Solar Sun Ring holds insulating air and focuses sunlight on the blue colored lower layer. The blue layer absorbs about 50% of the sunlight and converts it to heat. The balance of the sunlight is allowed to pass through for deep water heating. Each ring generates 21,000 BTUs per day and has been designed to be compatible with automatic pool cleaners. Neither water nor pool chemicals can evaporate through the sun ring's two layers of heavyweight vinyl. You will save water and chemicals about equal to the percentage of the surface covered. These rings may be used on all chlorine or salt water system pools, whether in ground or above ground.

Features:

• Solar heating of pool water during the day
• Easy to install and remove by one person
• Thermal blanket effect to retain heat in water at night
• Reduces evaporation of water and chemicals
• Encapsulated magnets hold rings together for rafting effect
• Easy break apart prevents entrapment in accidental falls
• Redesigned inner grid with added drainage grommets which allows water to seep through the Solar Sun Rings(R) without sinking
• Redesigned and enlarged outer ring for better floating, rafting and rigidity
• Added grommet on the hanging hoop for increased durability
• Compatible with automatic pool cleaners

Specifications:

• Color : Palm Tree Print
• Cover Size : 5 ft Diameter
• Item : Thermal Pool Cover
• Pool Spa Type : 20/Case