• Extra durable 

Make sure your pool’s cover does not come off this season by using the VWT10D21 heavy duty double water tube replacement from APC. Featuring a valve for simple water entry, this APC water tube is designed to be filled half way. After filling, the cold weather causes the water to freeze and expand, creating a weight that keeps your pool’s cover in place. Using this replacement water tube is a great way to protect your pool cover against the wind, preventing debris and dirt from entering it. When the spring time returns, you will be glad you used a pool & spa water tube to keep your pool protected.