Robelle 8 ft. 12-Pack Premium Black Double Chamber Pool Cover Weights, .Premium Double Seams, .42 MM Thick Vinyl, Pool Water Bags, Oversized Screw Valve Cap, Water Tubes

Pool Cover Weights 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.

• 12-Pack Black Premium 8 ft. Double Chamber Pool Cover Weights for Winter Pool Closing
• Premium .42 MM Thick Vinyl constructed 163% heavier than industry standard.
• Since 1973 Robelle has been making the best products to close your pool. Use the best pool closing products designed with over 50 years of experience.
• Double seams to prevent leaking.
• Easier to use 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.