Swimline 10-ft x 1-ft PVC Safety and winter Rectangle Pool Cover

The Swimline 10-Foot Double Water Tube (11 Pack) is made specifically for use with your rectangular or oval pool cover to eliminate stress on your pool and the cover. It's 33 percent heavier than other water bags, making it super durable - plus its valves are easy to fill up with a garden hose. This Swimline water tube is best used with in-ground pool covers. Covering your pool with a winter cover keeps out dirt and debris, and this water tube helps keep the cover in place. We are an Authorized Swimline Swimming Pool parts dealer. Swimline is a family owned and operated business founded in 1971 and is the leading manufacturer of high quality pool products. At its inception, Swimline was the largest manufacturer of in-ground and above-ground pool liners, covers, and all related accessories. (11 Pack)