10 ft. Double-Chamber Heavy-Duty Water Tubes in Black for Winetr Swimming Pool Covers (6-Pack)

Our Winetr Block double chamber pool tubes are a must have during pool closing season. They will keep your in-ground pool safety cover locked into place during harsh Winetr conditions. Crafted from a heavy-duty puncture resistant vinyl . they feature a leak-proof valve that is easy to fill with a garden hose. We recommended filling the bag 1/2 in. to 3/4 in. of its full capacity to prevent popping caused by expansion if the water freezes. To install the bag simply place the bag on your pool safety cover into the correct position and fill with water.