Swimming Pool Solar Blanket Covers are a must have accessory for any pool to save you time, energy and money. This12-mil thick solar blanket is constructed of UV-stabilized resin with thousands of tiny air bubbles that work to transfer solar heat into your pool water. This amazing energy-saving accessory transfers heat from the sun into your pool water and prevents that heat from escaping. While transferring and containing heat in your pool, solar blankets also help reduce chemical loss through evaporation, saving you money on costly chemicals and rebalancing. Extend your swimming hours and pool season with an economical and environmentally friendly way to heat your pool. The Solar Blanket Cover can be easily cut or trimmed to fit kidney, oval or irregularly shaped pools. Backed by a 5-Year Limited Manufacturer's Warranty.