20 ft. x 40 ft. Rectangular Dark Blue In-Ground Pool Cover, Water Tubes and Winterizing Kit

The Swimline 10 ft. Double Water Tube is 33% heavier then other water bags (12 Tubes Total). The valves are easy to fill up with a garden hose. This is used with an in-ground pool cover. Prepare your pool this winter with our pre-measured winterizing closing kit. Our powerful combination of winterizing chemicals help to prevent algae growth, eliminate minerals and metals that can cause liner stains and build-up and purge lotions, oils, grease and grime from your pool water. Ordering a larger winterizing kit than your pool size may help to protect against winter cover problems.

• New Swimline 20 ft. x 40 ft. rectangular winter inground ground pool cover
• Pool size: 20 ft. x 40 ft. rectangular
• U.V. inhibitors protect the cover from sun damage
• 4 ft. to 5 ft. overlap (cover size is 4 ft. to 5 ft larger than pool size)
• Highly resistant to punctures, tears, chlorine stains and other chemical stains