Reduces heating costs by up to 70%. Decreases water evaporation by up to 90%. Lowers chemical consumption. Suitable for Easy and Frame pools. Keeps the swimming pool clean. Note: The solar cover has small holes in the center. This is important to allow for an exchange between air and water, as otherwise there is a risk of the water tipping. Another important reason is that the solar cover could otherwise sink in the water during rain. For maximum effectiveness, the air bubbles should face downwards. The solar cover rests directly on the water, significantly reducing water evaporation and protecting the water from contamination. Due to lower evaporation and heat gain, the costs of the solar cover are recouped within one swimming season. Fits Easy Set and Frame pools (Ø 366 cm).