Winter Pool Pillow PVC Pool Cover Air Pillow Winterizing Pool Cover Pillow for Above Ground Swimming Pool Covers. Feature: 1. Exceptional Quality and Longevity: The air pool pillow is crafted with utmost care using premium materials, ensuring superior quality and long-lasting durability. 2. Tailored for Ground Pools: Specifically designed for ground pools, this inflatable winter pool pillow offers customized support and functionality, catering to the unique needs of these pool types. 3. Winter Protection: By elevating the center of the pool cover, the pool cover air pillow effectively prevents the formation of ice during the winter season. 4. Pool Wall Protection: Acting as a protective barrier, the winterizing pool cover pillow shields your pool walls from excessive rain, snow, and leaves that tend to accumulate during the winter. 5. Aesthetic Match: With its captivating blue color, the pool pillow seamlessly blends with the overall theme of your swimming pool.