Mecale 40 ft x 20 ft 12 mil Rectangle Solar Pool Cover Bubble Blanket Heat Retaining Blue

Day-and-Night Heat Retention: Thousands of closed air bubbles absorb sunlight to warm the pool during the day and lock heat in at night raising water temperature by up to 8 to 15 degrees C for a longer swim season

Cuts Evaporation Loss: The sealed bubble layer floats on the surface to prevent up to 95 percent of water evaporation and slow chemical loss so you refill and rebalance the pool far less often

Durable PE Material: Made from tough PE with strong tensile and tear resistance the blanket handles steady sun exposure without fading or warping for dependable use season after season

Keeps the Pool Clean: Laid over the surface the cover blocks leaves dust and debris from reaching the water cutting cleaning time and it rolls up lightweight for easy space-saving storage

Custom Cut to Fit: The blanket can be trimmed to match round rectangle or irregular pools and home or commercial spas giving a neat full-surface fit for comprehensive heat and evaporation control