vidaXL Rectangular Pool Cover 732 x 366 cm PE BlueThis solar pool cover sits directly on the water surface, within the pools edges, and can raise the temperature of your pool water by up to 1C, depending on the amount of direct sunshine. With PE air chambers all over its surface, it has excellent heat retaining properties. It is the least expensive way to heat your swimming pool. At the same time, it helps reduce the use of chemicals, as well as water evaporation. Being lightweight, installing and