Robelle 3748 Deluxe 4-foot x 8-foot Ice Equalizer Air Pillow for Above Ground Winter Pool Covers, Blue

• Rugged 16 gauge vinyl
• Absorbs pressure caused by ice expansion, protecting the swimming pool walls
• Forces debris from the center of the pool to the sides for easier cleaning
• It is recommended to use more than one pillow

Product Description The 4' x 8' Ice Equalizer Pillow relieves stress from the walls of your pool caused by ice. Ice Equalizer pillows also reduce the build-up of rain water, leaves and snow on your winter cover. All you have to do is inflate the pillow and place it under your cover during the winter months. Do not overfill the pillow with air, as this can cause the valve to pop out during the winter months. Safety Warning Ensure proper installation, secure the cover to prevent unauthorized access, and protect the cover from damage due to weather or sunlight exposure.