Robelle 3809-20-BLK-12 Premium 20g. Double-Chamber 8-Foot Black Winter Water Tube For Swimming Pool Covers, 12-Pack
The red tabs can be made easier to close by warming them up with a hair dryer.
Convenient 12 pack
Heavy-Duty 20 Gauge Vinyl Construction
Easy Fill Valve
Prevents Winter Cover From Falling Into Pool
Fill Halfway With Water to Allow For Ice Expansion. If you have trouble closing the valve please use a hair dryer to loosen before closing.
Details: 8' Double Chamber Black Water Tubes are constructed of heavy-duty 20 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. 12 Pack.