Pool Mate 10 ft. 10-Pack Extra Strength Black Double Chamber Pool Water Bags, Double Seams, .25 MM Thick Vinyl, Cover Weights, Oversized Jumbo Screw Valve Cap, Water Tubes

Pool Cover 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 & splitting your water bag. Pool Mate water bags feature a dual-chamber design, preventing the tube from rolling into your pool during the winter.

• 10-Pack Black Extra Strength 10 ft. Double Chamber Pool Cover Water Bags for Winter Pool Closing
• Extra Strength .25 MM Thick Vinyl constructed 56% 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.
• Double seams to prevent leaking.
• Easier to use jumbo oversized screw valve.
• Prevents Winter Pool Cover From Falling Into Pool.
• Double Chamber Design Prevents Rolling.
• Fill Halfway With Water to Allow For Ice Expansion.