These Double Water Tubes by PolarShield efficiently secure your winter pool cover tightly around your swimming pool. These water tubes are more stable beneath your pool cover and provide you with dependability you’ll love. Double Water Tubes use two chambers so that if one bursts or tears, the other continues to keep your pool cover secured. Our rugged water tubes won’t split like thinner bags as these are 33% heavier than the standard tubes. It’s quality Helkey Roberts no-leak vales make it easy to fill with a garden hose. Use these Double Chamber Water Tubes to keep you’re pool area safe and secure during the winter season. During harsher weather and freezing temperatures it is possible for your water tube to freeze and break, so it’s always a good idea to purchase a few backup water tubes and keep an eye on the chambers. If debris happens to puncture you’re water tube during a storm, a Vinyl Repair Kit will help fix your water tube. To prevent breaking water tubes, handle them with care and only fill them about 3/4 of the way full. When winter is over, simply drain the water, rinse and dry them, then store them away from sunlight. Double Water Tubes bring you an efficient, dependable, and easy way to keep your Winter Pool Cover secured throughout closing season. Looking for 10' Double Water Tubes? PoolSupplyWorld has the lowest prices online!