Pool Mate 1-3811--10 Pool Cover Water Bags, (Pack of 10), 10 ft. Blue Double Chamber, 16 Gauge

Pool Mate 10-Foot Winter Water Bags should be placed around the perimeter of your in-ground winter swimming pool cover. Simply slide these winter water bags through the water bag loops included on your winter pool cover. These water bags include leak-proof valves that are easy to fill with a garden hose. Only fill the water bag half-way, this prevents ice from expanding and splitting your water bag. Pool Mate water bags feature a dual-chamber design, preventing the tube from rolling into your pool during the winter. Made with Heavy-Duty 16 gauge blue vinyl.

• 10-Pack Blue Classic 10 ft. Double Chamber Pool Cover Water Bags for Winter Pool Closing
• Classic .33 MM Thick Vinyl constructed 107% heavier than industry standard.
• Since 1999 Pool Mate has been making the best products to close your pool. Use the best pool closing products designed with over 25 years of experience.
• Prevents Winter Pool Cover From Falling Into Pool.
• Double Chamber Design Prevents Rolling.
• Fill Halfway With Water to Allow For Ice Expansion.
• If you have trouble closing the valve please use a hair dryer to loosen before closing.