These great air pillows go under your above ground pool cover to keep expanding ice from cracking your pool walls.

These rugged 16-gauge vinyl pillows absorbs freezing water’s pressure and helps protect your pool walls. The Air Pillow also reduces excess rain, snow, and leaves on your winter cover.
A variety of sizes are available for different pool sizes. All pillows come with grommets on the corners so you can secure it across your pool with string or rope.