Set of 6 Single-Chamber Water Tubes for Pool Covers These 4ft x 0.77ft winter pool water tubes are crafted to endure harsh winter weather. Specifically designed to firmly hold your pool cover in place, they effectively prevent leaves and debris from entering, reducing maintenance and keeping your pool tidy throughout the season. Improve the Safety of Your Pool Robust and Long-Lasting PVC Material Durable Construction with Reinforced Seams Secure and Spill-Resistant Screw Cap Compact Single-Chamber Design for Convenient Operation Key Features Improve Pool Protection: This set of six 4 ft x 0.77 ft single-chamber water bags is designed to secure your pool cover by adding weight, ensuring it stays in place while keeping out wind and debris. Perfect for in-ground pools, these water bags are simple to fill, drain, and store, offering reliable winter protection and reducing cleanup efforts. Sturdy & Long-Lasting PVC Material: Made from 0.4 mm thick, flexible PVC, these water tubes for pool