Thermo-Tex Solar blankets will extend your Swimming season and save on water and chemical consumption by retaining heat in your pool. Cuts chemical use by as much as 50% and stops water lost to evaporation when not in use. Heavy Gauge Dome Technology rides high and flat in the water. Maintains and heats water by as much as 15? extending your pool season by as many as 6 weeks. 3-year manufacturer's warranty. Pays for itself in as little as one season.