- 4-Pack Black 2 ft. x 2ft. Corner Pool Cover Water Bags
- Heavy-Duty 16 Gauge Vinyl Construction - 30% Heavier Than Industry-Standard
- Single Chamber Design For Easy Filling
- Prevents Winter Pool 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.
Pool Mate corner tubes are constructed of durable heavy-duty, puncture resistant vinyl. The corner tube has a conveniently placed, leak-proof valve that is easy to fill with a garden hose. Corner tubes will 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.
