A perfect addition to your pool winter kit, the Swimline 2 x 2 Corner Water Tube is an L-shaped pool weight that holds your swimming pool cover in place and keeps debris and leaves from falling into the water.The double heat-sealed seams with a quarter inch overlap and heavy duty quality vinyl prevent any water leaks. The valve is leak-free too. It's large enough to accept a garden hose and quickly fills or drains the water tube. When filling the water tube, make sure to only fill it halfway so there's room for freeze expansion during the colder winter months.Protect your pool this winter with the Swimline 2 x 2 Corner Water Tube.