Reduce your heating costs by using the Sun2Solar® 1200 Series™ Supreme Blue Solar Cover to collect solar heat and transmit it into your swimming pool water. The passive solar heating can raise your pool temperature by an average of 5-10 degrees! Sun2Solar covers are made from a film of thousands of tiny bubbles, which work together to collect and retain heat. Note: Solar covers may come with 2″-11″ of overlap to allow for trimming. This may be necessary if your pool is uniquely shaped. Trimming does not void the manufacturer’s warranty. This Cover: 1200 Series™ Supreme Blue 30′ Round 6 Year Limited Warranty / 2 Year Full Includes 6-pack of heavy-duty grommets bundle All Sun2Solar® Covers: Reduce your heating costs Provides additional thickness for the very best in solar insulation Stops up to 95% of water evaporation and heat loss Bubbles on the cover face-down into the water