10'x21' Oval Heavy Duty Blue Solar Cover

• Extends pool season by preventing heat loss & chemical dissipation
• Keeps pools free of debris
• Warmer water with NO utility bills
• Reduces chemical consumption
• Use alone, or in conjunction with heater or heat pump
• 8-mil Solar cover
• 3-year manufacturer's pro-rated warranty (1 Year Full Rated Manufacturer Warranty)
• Made in the USA

The solar cover heats by day and insulates at night, as the translucent blanket allows the suns rays to pass through the blanket to heat the pool water during the day while the plastic bubble construction acts as an insulator to minimize heat loss at night.