This 4’x4’ equalizer pillow is made out of heavy-duty vinyl. It equalizes expansion caused by ice forming, relieving stress on your pool walls. This pillow will also reduce the build-up of rain, leaves, and snow on your winter cover. To avoid expansion, do not overfill the pillow with air, which causes the valve to pop out during the winter months.
- Constructed of heavy gauge vinyl.
- Absorbs ice expansion under winter cover.
- Great for Above Ground Pools.
- Absorbs Ice Pressure
- Prevents Structural Damage
- Reduces Debris Build Up