Swimline Air Pillow for Above Ground Swimming Pool Winter Closing 4' - Blue

Prevent undue stress on your above ground pool walls with this air pillow. This air pillow will keep your pool and cover safe from ice in the winter months because it helps to keep water off of your pool cover. The pillow also helps to make sure your cover won't freeze to your pool water during the cold off-season. . Features. Place a few of these pillows on the surface of the remaining water and secure the winter cover on top. When the water freezes the ice will compress the pillows instead of applying force to the walls. Pillows will also cause leaves and other debris to collect in certain areas of the cover making clean up easier. Grommet on either side helps keep the pillow in place. Dimensions: . Pillow: 4' Long x 4' Wide (deflated). Valve opening: 1" diameter. Material(s): vinyl. Note: it is recommended that the air pillow only be inflated three-quarters full to prevent premature popping