Solar covers, or bubble covers, are a cheap and efficient way of retaining heat. They also have the advantage of allowing sunlight through and trapping the heat, which will further raise the temperature of your pool. In fact, many people use solar covers without any heating as they will extend the swimming season by up to 6 weeks. The  400micron Anti Evaporation cover is manufactured from top-grade materials, with bigger bubbles to allow through maximum heat, and a UV inhibitor which protects the cover from the harmful effects of the sun. It is also 23% more efficient than standard blue solar covers. These covers can be cut to fit any shape or size of pool, and come with a free solar protection sheet which will prolong the life of your cover.