Check the listing for details. Solar Sun Rings For Above Ground and In-Ground Swimming Pools. Condition: New. Listed at 33.99 USD. Two layers of heavy-duty vinyl prevent both water and pool chemicals from evaporating through these pool solar rings. In fact, you will save water and chemicals about equal to the percentage of the surface area covered. Once your pool water has reached a comfortable temperature, the Solar Sun Rings may be turned over to conserve water, limiting evaporation without significantly heating the water. A convenient, easy-to-use alternative to large swimming pool solar covers. We recommend purchasing enough pool solar rings cover 70% to 80% of your pools surface, ignoring the small triangles between the rings. Each ring is 5 ft wide, or 60" in diameter.Recommended Coverage is 62% of the pool surface. Here is a chart for recommended rings.12' Round Pool = 4 Rings15' Round Pool = 5 Rings18' Round Pool = 8 Rings21' Round Pool = 10 Rings24' Round Pool = 14 Rings28' Round Pool = 19 Rings16 x 32' Oval Pool = 14 Rings18 x 36' Oval Pool = 17 Rings20 x 40' Oval Pool = 22 Rings16 x 32' Rectangular Pool = 16 Rings18 x 36' Rectangular Pool = 20 Rings20 x 40' Rectangular Pool = 24 Rings You should receive a confirmation e-mail upon purchasing your item with additional instructions for check out. Paypal is our choice of payment method. Should you have any questions about our products please contact us BEFORE bidding. All items are brand new. These rates apply to the lower 48 states only. Applicable sales tax will be charged to products shipping into the following states: AL, CT, FL, GA, IA, IL, IN, KY, MA, MD, MI, MN, NC, NJ, NV, NY, OH, OK, PA, SC, TN, TX, WA & WI Pool Supplies Superstore is pleased to introduce next day delivery to most of the US for all Water Warehouse brand chemicals and many of our most popular swimming pool supplies. Next Day Delivery Service does not mean Next Day Air, but simply that your qualifying products will be shipped from the warehouse closest to you resulting in delivery the next day. All orders ship standard service, signature service is not required. We do not ship to the following addresses: P.O.Box & APO/FPO Addresses Alaska, Puerto Rico, Hawaii, and Virgin Islands. Freight Forward Companies Shipping Details: All in-stock orders placed Monday-Friday by 1pm CST are shipped the same day, and should arrive to you within 2 to 8 business days in the continental U.S. If you fail to receive your order within 8 business days, please notify us immediately.