Premium 10-Year 18 ft. x 33 ft. Oval Blue/Silver Above Ground Pool Solar Cover

The Pool Mate Deluxe 5-year blue/silver solar blanket includes a unique aluminum heat shield that traps otherwise lost heat back into the pool from the special aluminum underside. The heavy-duty material works with the sun to catch and retain heat. Solar blankets float bubble side down on the surface of your pool water when the pool is not in use . allowing solar energy to pass through and trapping it as retained heat in the pool. Helps raise the water temperature by absorbing sunlight during the day and retaining the heat at night . extending the pool season. Savings come from a reduction in water evaporation decreasing chemical consumption. Material is highly resistant to ultra-violet rays which inhibits deterioration. 14.6% greater heat retention.