Robelle 3809 Deluxe 16g. Double-Chamber 8-Foot Blue Winter Water Tube For Swimming Pool Covers

• The red tabs can be made easier to close by warming them up with a hair dryer.
• Heavy-duty 16 gauge vinyl
• Double chamber design prevents the tube from rolling
• Leak-proof easy to fill valves

Product Description 8' Double Chamber Water Tubes are constructed of heavy-duty 16 gauge, puncture resistant vinyl. All of our water tubes have a conveniently placed, leak-proof valve that is easy to fill with a garden hose. Water tubes keep your pool cover in place all winter long. Water tubes should be filled half-way to prevent popping caused by expansion if the water freezes. Safety Warning Do not overfill water tubes. Fill only halfway to prevent popping due to freezing. Always store properly during winter.